Using sex terms (as in "fucked up" or "that sucks") to indicate violence (as in preventing normal action or imposing deprivation inducing results, philosophical violence, not colloquial) is a meme as old as time. It's more of a dysphemistic treadmill thing than anything. People are okay with being oppressed when talked about in normal terms like "walled garden" but talking about sex at all is taboo in a lot of places (for no good reason). (I am asexual (mostly) and I find this paradoxical aspect of the largely sexual public (in the US) to be massively a detriment to society.)

So no, using anal here isn't being homophobic. Not including it in the dysphemistic treadmill would be. My boyfriend has used this term before and he's hella gay.

Edit: for reference, I'm exaggerating a bit. Buying into a walled garden is fine if that's what you're into. Just know that you don't own the hardware or software you bought, instead you paid to get temporary access to services provided by it. For more information, see the war on right to repair.