Japanese doesn't even have a word for "gay." The closest it comes is probably "ホモセクシャル" (homosekusharu), but that's just a subculture where dudes put their cocks in other dudes' asses and kiss each other and stuff, and they do use rainbows, but it's just a cultural thing and has nothing to do with that woke stuff.
Yeah it's common for men to platonically insert their penises into each other's anuses in Japan, it's a traditional way of scratching a hard to reach itch and serves as a medicine free diuretic.
There's even records of famous samurai and daimyos like Oda Nobunaga and Miyamoto Musashi engaging in that cultural practice, and obviously they were very manly (not gay) and lived long before the woke agenda started.