Nip fujos aren't usually as bad as nip waifufags, because they understand that their fujoships aren't going to be "canon" and just want to have fun. They're not as autistic about their husbandos interacting with girls, if their favorite character gets a girlfriend they'll usually just ignore it and ship their fujoships anyway, because they never expected anything like "queer representation" in the first place. Female otaku can be just as bad when it comes to stalking seiyuu and throwing fits over seiyuu marriages and crap like that, though.
Western fujos do get autistic about shipping and are much more likely to send creators death threats, burn merch and cry homophobia. Unlike nip fujos, they delude themselves into thinking their ships will be canon because they've gotten used to western media where characters do turn out to be gay and creators cave into fan demands and make gay pairings canon (see: Voltron, Stephen Universe, Adventure Time, Overwatch, Korra, RWBY.) They also mix morals with shipping and argue that their ships are morally superior just because they're gay. It's the same reason they send artists death threats for drawing age gap, incest and other such things. There's this idea that fiction must be moral and reflect reality. Nip fujos don't give a fuck about that and just draw whatever makes them hot.
So it's not really fair to compare western fujos to nip fujos or nip waifufags. Two completely different approaches to fandom.