1.)Is it really right to believe that there is only one religion?
Yes, because religion makes a bold claim.
This is why Religion has been disputed and caused wars and issues between peoples, because they make a bold claim that you either believe this is true, because if you don't, you will burn in hell, not reach nirvana - pretty much be punished or condemned in some way shape or form.
If you do not believe in the Christian God, then your soul is at risk of destruction; this is what separates religion from the realm of subjectivity and personal interpretation / philosophy - because religion, especially Christianity, is built off an objective / absolute foundation of truth.
It is not a matter of opinion that God exist; it is a fact of reality that God exist, and thus since God exist, then the penalty for not believing exist.
Missionaries who carry out this message, do so with consideration of another's life, because they believe that God exist and doth not want others to suffer the penalty of destruction for non - belief.
Now, it is a matter of who is really right, and if anyone is even right - which I'll answer in the next question.
2.)What makes christianity the right religion?
For starters, no one knows if it is the wrong religion. Heck, no one knows if any religion is wrong, and we won't know until one is fully proven right. Everybody has their own argument as to why the Christian God is true - but what matters are the hard core facts which cannot be disputed, as absolute truth cannot be disputed if it is true.
Like, I can say that humans don't have hearts that pump blood in our bodies, because I believe that we have water pumps inside our bodies instead that do it. But am I correct even though this is what I believe? Of course not. I'm false.
There's a common conception amongst Christians that we all can believe freely and all be right; but that is a bad representation of both logic and what defines truth.
So then, how do Christians know our God is the true God/ Religion?
Our God left proof, and God showed himself throughout key points in the 6,000 documented histories of the world.
Understanding the Bible
The Bible is the core foundation of Christian faith, as it is believed to be the true words of God. But how can we confirm that it really is?
Through Biblical Prophecy.
What is prophecy? It is the fortelling of world events several years before those events take place - as only God would know the future in such explicit detail. The common mistake is that people believe the Bible only documents Old Testament history such as Jerusalem, and that older time history. Actually, the Bible documents those times, but also speaks about modern events such as WW2, the holocaust, the Fall of Jerusalem in 70AD, the Council of Nicea, the rise and fall of Various Kingdoms and nations that we read about in textbooks these days during World History class.
A nice example is in the book of Daniel, in which Daniel has a vision of a shaggy male goat, who is revealed to be the First King of the Greek Empire. Daniel states that this king's empire would divide into four after his death.
In real world history - Alexander the Great was the first king of the Greek Empire, and when he died, his kingdom split exactly into four kingdoms.
Alexander the Great was born hundreds of years after Daniel received this vision in 605 BC; how is it that Daniel knew in such detail what was to come? God revealed it to him.
The Bible does this from the very first verse of the Bible - as the Creation period of Genesis Chapter 1, describes in incredible detail how mankind came to be on the earth, the major spiritual events that took place such as the Reformation, the reapperance of Christ in the last days, and finally the Eternal rest soon after.
The Bible talks in parables, which are metaphors. As we know, a metaphor calls something another thing to perpetuate the meaning of the metaphor; that is, if I say:
" A ribbon twisted between the mountains."
Do I really mean that a huge physical ribbon is twisting through the mountains? No. I'm describing a river.
Likewise,
The Bible parables with people being compared to animals ( beasts,) the devil as a dragon, the great prostitute in revelations who is actually the big false church of our time.
This is why the Bible is so difficult to understand because of all it's parable language. However, the Bible decodes itself if you pay attention to what real object is being portrayed metaphorically.
Lastly,
Parables are also secrets to the kingdom of heaven ( Matthew 13:10 - 11); meaning, once they are understood, they will reveal some epicness. Only God can reveal these, so one would have to wait for Christ to appear to explain the Bible, meaning that up until that point, no one knows the truth of the Bible.
3.)In the case of Scott Lively and Uganda...is that supported? The spreading of hate against another group (gay men and woman)?
NO.
This is an abuse actually. The Bible does speak about homosexuality, and there is this idea of the Bible being against women, which is strange because God is revealed to be a woman in the Bible itself - but in either case, enforcing one's belief on another is not the way the gospel is supposed to be perpetuated.
It is a mixture of misconception of Biblical teachings, and spiritually arrogant enforcement on behalf of the missionaries. You cannot make someone accept God; and even God does not want forced acceptance because it isn't authentic.
The only function of a missionary or gospel worker, is to deliver the CORRECT message of God, and that is it. They are just a messenger, not the law.
4.)Is there any respect for the native religion/culture/belief? Can there be respect for another belief when a person is being told what they believe is incorrect?
There's respect, but up until a point, and that point is when someone is being proven incorrect.
It's not disrespectful to debate and determine the truth from what is false; matter of factly, this is basic human logic, and necessary for developing concrete understanding.
If the Spiritual world does really exist; and there is a ruler of the world whom Christians believe is God, then eventually, the truth will have to be revealed or else it does not exist.
If Christians claim the absolute truth of God, and the absolute truth is actually and fully revealed; then we come to a situation in which a religion has been confirmed as absolute truth - meaning that the Christian God is the only god, and Christianity is the only accurate religion -
It is because when something is true, it automatically means any other alternatives are false. The problem is that everyone is trying to figure out whom is really correct.
We won't know until the true God reveals so, and honestly, it is the Christian God because he was the only divinity to show himself and well herself too.
(If you want to know a little more about Bible prophecy, feel free to message me. It's very incredible stuff that a lot of Christians aren't even aware about.)
Hope these answers helped!