In regards to the regressive left bitching about "kinkshaming", these retards love to defend extra marital relations and dangerous and extremely gross fetishes such as scat, soiling, ABDL, and pozing, which are all associated with bad sanitation and spreading dangerous/incurable diseases, but they will slander you if you are into anything they find offensive like anorexia fetishism, rape pornography, Nazi uniform fetishism, Gor type stuff, etc.
As for Nazi uniform fetishism, it was popular in the furry community until the regressive left started ganging influence in the major sites, and I did not mention lolicon/shotacon/cub porn because I have seen regressive leftists who both like and hate it and have not noticed any infighting related to it.
The regressive left also find Autogynephilia offensive because they literally do not belive in it due to the term's origins, and have therefore ruled it a violation of their extremist ideology. They are also known to bash non dysphoric crossdressers.
You can't talk about disgusting fetishes without mentioning autogynephilia (the main cause of the "lesbian" MtF tranny problem) or age play, of which the diaperfag shit is only a small part. For those who don't know age play is where at least one partner (it's almost always just one, but it can be both in theory) pretends to be a different age, almost always a minor. It's roleplaying pedophilia pretty much, so it tends to attract the freaks we discuss here. I hate to use the term gateway because of how often it's abused by soy suckers seeking to censor things ("gateway to the alt right"), but it applies here. Age play is a gateway to actual kiddy diddling. It's so disgusting that only a short eyes looking to get his fix legally would be into it, and eventually it stops being enough. They eventually have to fuck actual kids to get the same thrill that role playing used to give them. That's how Peter Bright ended up being the cell block bicycle. Not coincidently he got caught by an undercover cop on an app dedicated to these degenerate fetishes.
I have no knowledge as to the popularity of ageplay with actual pedophiles, but I do know lolicon communities that DON'T ban pedophiles on sight were reported to have problems with them, and the furry community was also reported to have issues with zoophiles.