It’s true that they say we humans are afraid of things that we do not know or do not understand.
Take algebra for example, how much we hate it, how much we dislike it, how much we feared it; Once we got the basics, we are glad that we know it.
Closeted gays are afraid to come out from the closet because of how the society look at them. How would you feel when a friend openly tease about two boys holding hands while you two hang out together? I surely would not want to come out to him or let known that I am interested in boys.
Lucky I don’t have such friends.