GodBear RaptorJesus. That's mortifying. Nothing wrong with having a hobby. That's overboard.
I believe you. Had a fair share of encounters with horrendous weebs that spoke and learnt Japanese just failing pick up any Asians who are or aren't native grorious Nippon as long their sight of affection target victim was straight cut out from anime proportions. They have this severe yellow fever and go for anyone they see Asian.
Thirsty weeb dudes who try hitting on any Asian women, speak bastardized Japanese to them, despite being told they're not Japanese or don't speak it. So they fail and move on to with "substitute" to just say they got to bang. Some of the guys are pretentious caucasoids who have a white savior god complex, announcing they're out to save the world. Others are smug dindus who like to say they've been to Japan and will get the tang and need to air out they're in their fantasy country.
Thirsty weeb chicks look for that submissive or docile guy in those dramas they love to stream from their shitshacks hellholes luxury homes. When they find out their love interest unfortunate schmuck ain't grorious Nipponese, they'll stalk the crap outta them, message them, complain they aren't getting loved or wonder why no Asian man wants to rescue them from evil, ignorant, bigoted responsible parents. They all vary here and there, though I've seen an increase in Latina, Cambodian, Tibetan weebettes. They love to ask lots of questions, similar to how valley girls have the fever.
Just recalling that is nauseating.