Fear not, for I too, (as an Artist for 22 yrs and a SA survivor who is Ace), also profoundly DETEST nsfw content, so to me - your feelings are completely valid and justified. (Infact I know a number of other people as well within my own social circle who hate nsfw too.)
The only difference between you and I is that, I don't have paranoia/ fear about finding Artists "who could have created traumatizing content". I choose to be open and bold faced about my anti nsfw nature cuz narcissistic, selfish, karenque type people seem to LOVE trying to force that bs onto me since regardless of weither I'm both online or offline. Infact people have been trying to force push nsfw onto me since I was 4 yrs old. The disrespect is often infuriating, especially when males try to subject me to that garbage. And because I am very anti nsfw and very picky with whom I allow in my presences or to whom has access to me or my Art etc, people do go out of their way to attack/ bully me or my Art. I've even been banned in a couple places because I had a low tolerance to nsfw/ bs.
If I find out someone makes nsfw content or likes/ engages with such, I block them and avoid them at all costs. In real life, I pretend the person doesn't exist and I could care less if it hurts their feelings. There's a million things people can make content on - I being proof of that with my own Artwork, so they really don't have any excuses to make smut tbh. I don't see such vile people as real Artists etc, much less as human beings and while you wish they would be thrown in jail - I personally, wish (a violent, gruesome) death upon them, cuz these people aren't the type to be considerate of others, even when you point out to them what they're doing is effed up and harms people more than help society.
As for the TOS of apps and sites - many online spaces often state that posting nsfw IS against the rules, but more often than not, people ALWAYS break that rule and post bs anyway because they feel entitled to the concept of doing whatever they want - thinking there would be no consequences to them regardless. Often times, if posts aren't reported frequently and in mass, the nsfw creeps continue their crap behavior. I say this cuz this site may say nsfw is against the rules to post (since minors use this platform), but honestly, I've seen minors post nsfw art anyway and I had to block them. Matter of fact I just blocked someone who uses Gaia, cuz they drew smut, so...