On top of all that America also just actively persecutes queer people. People will say "oh that's just the republicans" as if that isn't half the country and it's not just the republicans, but a large group of democrats. Then they'll say "oh, but we're not as bad as [enemy of the week]" which funnily enough is actually a whatabouterismerino, but also not really a valid argument if you're saying it's okay to bomb a country if they're mean to queer people. So it's okay to be kinda mean to queer people?
On top of that there's also the fact that some of the US' closest allies are countries like Saudi Arabia, not to mention the many far right anti-lgbtq dictators the state has installed over the years.
On top of that the US has only recently gotten "good" on queer rights. Homosexuality wasn't decriminalised in the whole of the US until 2003 (and we're not talking some weird little forgotten law, it wasn't until a supreme court decision forced several states to finally stop being bigoted.)
At the same time the GDR had decriminalised homosexuality by 1957 and with constitutional reform fully legal by 1968 
The GDR did this despite inheriting the nazis legal code (according to a wikipedia source which I will not fact check.)
Would it have been acceptable, nay morally right, for the GDR to bomb the US?
definitely, but not just because of da gays
Maybe I'm overemphasizing the issue, but I think developing a rhetorical solution to pink imperialism is one of the most important immaterial (as in "not industrial sabotage or something cool or actually useful") goals for anti-imperialists currently.
I don't fully know what makes the "x-ethnic group hates gays so let's purge them from the land" so compelling. For me it just triggers an error log.
generalizing an entire population to be homophobic is straightforwardly bigoted in itself
If you bomb any large enough quantity of civilians, you are bound to kill many gay people in your allegedly pro-gay crusade
to my knowledge, there are no types of bombs that specifically spare the lives of gay people or their sympathizers, or any that specifically target homophobes
even gay people who survive direct bombings will suffer as everyone else does from destroyed infrastructure that they depended on
to the extent that things were already horrible for gay people in Gaza prior to October 2023, they were mostly a product of Gaza in general being horrible to live in because they were trapped in a giant concentration camp under israel's thumb
israel itself is not even pro-gay enough to have legalized gay marriage, so it's silly to talk them up like they're crusading for gay rights when they can't even be bothered with basic shit like that domestically
most of these dickheads invoking this talking point are straight and cisgendered, and would be fine watching every LGBT person in america being shoveled into a fucking furnace if they thought it was necessary to preserve their comfort (based on their reactions to the Dems showing complete disregard for Palestinians being brutalized and genocided, the concerns of arab and Muslim americans on Palestine, moving rightward on immigration, etc.)
Its just chauvinism. Back in the 1890s it was stopping slavery in the congo or saving indian widows.