Really? You genuinely can't think of anything in the entire history of humanity more perverse that someone could do than wear a mask? Have you spent much time on the Internet? And historically -- I mean, I'm just throwing out one idea off the top of my head, but how about public executions in the Colosseum for entertainment purposes?
This is pretty silly. :)
Even if you do somehow think that mask-wearers are all perversely deriving some pleasure from suffocating themselves and that they're walking around unable to breathe, there's still no way you genuinely believe that auto-erotic asphyxiation is the most perverse thing that society has ever invented.
Well, then I would recommend you to look more around you, very few to no animals intake air directly through their trachea, we evolved noses to both filter the small particulate with nose hairs, change the temperature of the air and later evolved the use of smell
So yeah, next time you go out I would recommend you to carefully review the faces of the beings you see around you and realize the existence and plurality of noses and "noseholes", and yes, noses themselves also inhibit oxygen flow vs "open trachea holes"
Lastly, you are welcome to give yourself a tracheotomy if you'd like too, just be careful, or maybe not
Ok. Well thanks for removing all doubt here at least.