There are some basic human urges you can't suppress by banning them - religions have tried for a few thousand years, and they can't keep even their _priests_ in check, never mind the regular believers.
Should sex work be regulated? Definitely.
Can it be banned? No.
This solution basically means law-abiding citizens who suffer from mental or physical conditions that make it virtually impossible to find a voluntary, willing sex partner are going to be cut off from being able to enjoy sexual pleasures for their whole lives. I suppose that this (and the fact of knowing this) may cause their condition to worsen significantly.
In practice, those who can just go to Germany or the Netherlands to use a legal prostitute, or Thailand (for example) if they want a long term partner.
Those who can't are left to their own devices. Unfortunately, comparing figures about sexual crime between countries is notoriously difficult, so it's not possible to make a clearcut case for whether that impacts , but it's not hard to imagine there may be a correlation.
Anyway, I wonder how the Swedish system sees Onlyfans. Does it consider the men who are buying these services from the "vulnerable models" the bad guys in this story? Should they be punished? Do they believe only vulnerable women are on Onlyfans, and that most of them probably were forced into it by some bad men? I honestly want to know what they are thinking.