Thought of something more: Fear of Diversity.
Diversity is required for evolution yet we make fun of anyone different. Ultimately it comes down to 'fear' of anyone's diversity that we don't understand. Education is the best cure.

It's funy isn't it as in the "animal kingdom" gay animals are not judged at all

Both could, but at the end of the day it's a form of oppression. Someone's sexuality doesn't harm anyone and so is not a threat to others, therefore shouldn't need suppressing. I'm with you, straight: but have been on rallies for lgbt rights, simply because I think it's the right thing to do.

Humans fear that which they do not understand. That which humans fear, they often seek to destroy. Homophobes fear the lgbt community because we are different from them, and make no apologies for it. They fear the changes that societal acceptance of us represents, and will never get on board.

I agree peace for anyone no matter their sexual standing