Well ok, HATE is a very strong word. If I HATE someone I would want to kill them, as I know I would want to KILL someone who abused people dear to me.
I like your example though. I also don't like prostitutes, thieves, killers, drunks, drug attics... and so on. The difference is I don't see the drunks or prostitutes attacking every institution and trying to force their lifestyle on my family or my country. And therefore, I don't have an issue with them. Live and let live.
The reason the people are on that list is because they are the ones who are against forcing the gay lifestyle on society. IOW, the gay people who agree with your political position about "gay rights" are the ones that this gay activist is going after.