I'm somewhat conflicted on it. I'm as guilty as the next man for using words like 'faggot' and dismissing lame things as 'gay'. I do it partly as it's just the language that I grew up with, but I also just happen to find it amusing. Nonetheless, I might have to stand with the benders on this issue, and I believe that pride is being used in the appropriate way here.
In my opinion, 'pride' in its everyday context is a rather misplaced and silly sense of satisfaction over one's accomplishments that doesn't account for the role of circumstance and sheer luck. When taken to mean the absence of shame, however, I think it's fitting and worthy of acknowledgement.
If I were a limp-wristed bum pirate like Prime or affeman, I suspect I would be quite militant against any claim that I should be ashamed of the person I'm in love with. Similarly, I would hate to think of any hypothetical child of mine growing up embarrassed and ashamed of what they are. If pride marches give young gay people the self-confidence to live boldly and get on with life instead of sleeping in the back of an old BMW and begging for booze money while posting on Getbig, fine.
Admittedly, I am physically repulsed by the sight of two men kissing, but I wouldn't say they're doing anything wrong. Similarly, anal sex is disgusting to me, but it's not immoral. This reaction is biological and rooted in our somewhat flawed sense of equating the disgusting with the immoral (though I'm still battling with the wider meaning of this point).
Now, have I occasionally been pressured into penetrating the anuses of various young ladies? To my great shame, yes. It is true that I sodomized a Cambodian cover model because her fear of being left with a clown's pocket for a vagene was so severe that she asked me to smash the back door instead. And fine, if you're going to put a gun to my head, I also bummed a sex-crazed South African stunner (White) and a journalist who wanted to try 'just the tip'. There, I said it. While I rebuke those hussies for taking advantage of my impulsive nature, I do not regard my actions as departures from rectitude for which I need to repent.
Concluding, do I want to live in a society where consenting adults are demeaned for the way in which their brains have developed? No, I guess I do not. So, in principle, the gays can have their day, or week, or whatever the hell it is. In reality, I also just wish they'd self-police their events enough to keep the militant trans twats and the degenerate, hyper-sexualized exhibitionists and kiddy fiddlers away. Parade down the streets in nice suits while holding hands or something instead of making every effort to cement homosexuality as a paraphilic disorder.