Her are my objections to this type of demonstrations:
1) Why do you throw pearls to swine; to people who wont listen, and eventually put you in jail?
2) Is the freedom of speech a freedom to harrass other peoples? Would you like if there were demonstrations aginst the christians, everytime they had meetings? Or maybe harrassment of those who believe in christ? Harrassment is a subjectiv feeling, not something we define as christians.
3) Why dont speak to those who wants to listen instead of those who hates your message?
4) Isnt beeing a christian a free choice, and the gospel something that must be receveid by a receiving and Godfearing heart?
5) Is the object to provoke people? If not, how come these christians dont understand how provoking it is for people who belongs to Satan?
6) Did Jesus go around harrassing people who lived in sin? Didnt he only replied to those who asked or tried to attack him? That is the principles of God: Let those who seek be answeard.
7) The Love of christ is also a respect for people who will not receive Christ and the will of God. This respect for the ungodly is also what will judge them.
8) If these demontrations are the "consern" for Hell, Why not instead speak about the sin and the consequenses of sin to those who seek the truth? To those who have ears? Let them hear!
9) Are they conserned that there might be people in the parade who might come to repentance? Maybe prayer would be a more powerfull weapon?
10) Is it likely that you will cause a repentance among some of them? When you read the Roman 1:25-28, there is not likely that these people will repent. The participants in the parade do probably belong to the most hardened among the homosexuals.
10) Let us respect that people have a free choice, and that free speech never should be misused for harrassment, or to replace the individual freedom.
11) How come the Americans are so upset by this particular sin; homosexuality, at the same time as the whole society is drowning in all types of sin? Like; wars, military invations, capitalism, prostitution, selfisnhess, greediness, moneyism, vanity, lies, heterosexual sins, Hollywood and Las Vegas? Why dont you never see American Christians in demonstrations against wars or capitalism? Maybe because they dont care!
12) The freedom of speech is much more free in the written word than in the word spoken directly to a person or a group of people. Cause when you write something (in general) Only those who wants to read it - should read it. Its not written for those who will not agree! In example; the Budhists write stuff for the budhists, and the socialists for the socialists. Therefore the wisdom is to speak in general.