J.W. . Here is what you said

*** Here is another thing I dont understand. If a man approaches a women, all she has to do is say "No thanks, I'm not interested" if she aint. If a gay man approaches a straight man in a similar manner, why is it that some men can say "no thanks" but others have to beat the gay guy to a pulp? ***

You've made a bunch of stereotypical generalizations here. Including "All a woman has to do is say no" and since only "some" men just say "no thanks" aren't you implying that the "others" which beat gays to a pulp represents the majority. A retorical question like that implies a common social problem against which you are preaching.

Fact is I am sure it depends upon the situation. A man can be rude and lude enough when he hits on a woman to get the response of a slap in the face, mace or worse.

Lets say for example, you are having a few with your mates and a man, puts his hand in your crotch and says something like "Come on sugar. You know you want it." You wouldn't blame a woman for slapping him or maybe even using mace. If a woman shoves him violently away, she is defending herself. If a man does it he is gay bashing. And a man will shove another man away hard! Because men are generally larger stronger and potentially more dangerous than women and adrenaline becomes involved.

I'm not saying it happens this way. I have already told you I have never seen it happen. I have heard guys sayin that they would beat up a gay who made a pass at them. But I think mostly this was akin to you mother telling you she would kill you if she ever caught you smoking.

The moral is. Don't smoke!

Seriously, If you've seen enough gays get beaten up that you think it is a social problem, then you no doubt know the answer to your question. If you haven't, then why ask the question?