As far as some people that say Islam is like Christianity in that they persecute the unbelievers is not valid.
The Bible instructs the saints not to fight physically for the kingdom of God,and be harmless as doves,and turn the other cheek,and if they do not heed what the Christian says that person is to walk away from them,and let them be.
The Bible even instructs the saints to not even fight verbally with people,and if it gets to that point,let it go and move on,for God does not even want strife among people verbally.
And hypocrites,and people that would go contrary to that does not change anything,and Jesus said the hypocrites do not belong to Him.
But the Quran is not like that but allows them to fight for their religion,where the God of the Bible says do not fight for your religion.
Even when the world attacks the saints at the beast kingdom,God said,do not fight back,for however you fight back it will come back on you,for he that leads in to captivity will go in to captivity,and he that kills with the sword,will perish with the sword.
This is the patience and faith of the saints,for they will have to endure it,and Jesus said,do not fear what they can do to the body,but can do no more,but fear God.
As far as the Roman Catholic Church,they are worldliness,and the Bible together,paganism,and the world together,the religious system of the cruel Roman Empire,which is why they were in to control,power,and persecuting people that did not comply,and going forth with physical power for physical dominion,which Jesus said not to do.
When they embraced Christianity,they held unto their religious ways,and it became their foundation for the interpretation of scriptures.
There is no comparison between Islam and Christianity,and hypocrites are not part of Christianity,so Christianity cannot be blamed.It cannot be blamed for the worldly people not doing right claiming Christianity.
Christianity and who actually belongs to Christianity,is blameless,without fault,in perfect morals,and love,unequaled by any other religion,or belief system on the planet.
Islam is not,and far from showing the love of God to the world,even though creation testifies there is a higher power that loves people,and even a lot of atheists have better morals,and love,than them.