Thing is that I actually agree with them to a point; I hate the straight, white back-patting that circulates pride parades and gay issues. I'm Irish and have a handful of gay friends who, when we voted to have gay marriage instated here last year, had their voices drowned out by all of my straight friends spouting their "impassioned" stance on the issue. And it just sickens me because they're all people who never said a god damn thing about it before. So I agree on the artist's sentiment at least. I don't like the pre-packaged, marketable image of gay people being used as a badge of honour for people who it barely effects.
I don't debate their point because, duh, we should be more accepting of everyone. But neither do I want to literally rain on someone's parade. I don't agree that pride parades aren't already inclusive (though, imo, should be a bit more exclusive of straight people wanting to gain social brownie points from it), but I really don't think there's a debate to be had from me.
It's the attitude that bothers me because it ruins things I already like by populating them with whining children who have little sense of agency. It makes all progressive ideas seem deplorable by associating them with, in short, assholish censors and little baby fascists.
And again, I'm not twisting anyone's words here, I'm talking about the larger context this comic exists in. Which is, I think, totally fair because it's making a political statement.