'Hate' is good ... and necessary ... in the correct context. 'Hate' is bad ... and harmful ... in the incorrect context.
But I think there are some clear indications of where hate is not acceptable. Now hatred of certain attitudes, or beliefs, or concepts, may be acceptable. The hatred of persons, which is the context of this discussion, is always unacceptable. We are never to hate persons.
My point was to say that so long as we are talking about individual cases of hateful action toward persons, we don't have the right to accuse any group of persons of hatred, even if the actions are taken in the name of, or on behalf of, that group.
Are Christians guilty of anti-homosexual hatred? Well, there are times when I think they are. But they are not guilty of it simply in virtue of disapproving of it (there are those who don't disapprove, spare me the boring debate about whether they are "real Christians" or not). However, when people go to funerals of AIDS victims carrying God Hates Fags signs, I think they are guilty of hatred. If gay people disrupt church services the way these people in the link did, I think they are guilty of hatred against Christians.
Although I like Tom Gilson's site, I am less than satisfied with using this incident to say "Aha, see, it's not the Christians who hate, it's the gays. It seems to me a gay person would say that these people no more represent the gay community than Fred Phelps represents the Christian community.