That might be true, but it's also true that making decisions based on a strongly opinionated argument led to literal witch hunts. With burning and everything involved. (And OS-flamewars, these are even worse). I guess the best option is to find a healthy balance between choosing a side and considering conflicting points of view.
In this case, I think there are some angles of view that might be contra-marriage but not hateful. That's all I wanted to say– I don't think Eich is a bigot, his reason might be different than the one that a a lot of people placed in his mouth.