I mean, I get it. Really, I do. It's tough to be a progressive. Always trying to find some new angle, some novel way to put yourself in the moral vanguard. It has to be exhausting, running around like Mencken's definition of a Puritan, telling everybody that they're doing everything wrong (and for shameful reasons to boot). And as fewer and fewer people bother to take you seriously, you start becoming desperate, trying to find a previously-overlooked source of sinfulness that will make them pay attention again.
And so here we are. While I'm sure that, like most of their pathetic outbursts, it's best to just ignore this, I have to admit that I don't consider this sort of outright blasphemy against my lord and savior to be amusing. I suddenly have a strong urge to join the NRA, buy an AR-15, and take a selfie in front of my AC unit, daring them to come and take both. Some arguments just deserve nothing but trolling in response.