Just out of the door here let me clarify i am not against the lgbtq comunity at all I also do not think that saying any view should be a crime. Unless they are making direct threats i think that it should be legal to protest for this. I think that any view should be legal as long as it does not have the intention to hurt someone else. You could believe that fairies are the soul beings that matter for all i care.
I am a gay man myself, But I am also a supporter of the First Amendment. People should have the right to protest as long as they cause no harm to other individuals. As much as I would disagree with them and even dislike it, They have that right to say it.