I think there are small, non vocal segments of people with those paraphilias who really don't WANT it to grow, and probably have it fester in silence, but are made worse by infection vectors which spur the worst out of people.
You aren't entirely wrong, but I think its a 3 point connection triangle of like the paraphilia itself / how deep it is, ones unwillingness to resist, and surroundings encouraging it as risk factors. They feed into each other and make it worse, 0 points being safe, 1 point being troublesome, 2 being hazardous, and 3 being obscenely dangerous.
I actually made a diagram of what I'm talking about, I'm no artist, but I figure its a good visual indiciation of exactly what im talking about.
View attachment 7237667
Loli vtubers are squarely in the 3 zone, obviously, where all 3 points of the diagram are in effect.