What causes a momcest fetish? Is there a cure?

What causes a momcest fetish? Is there a cure?

Do you guys ever think about momcest lost media? There were tons of captions and stuff lost in the Tumblr purge, much less bizarre fly-by-night sites like Momcest and Pushing Taboo. Maybe this is a sign of being in way too deep, but the fucking ads for those used to turn me on as much as any video.
The thing I most wish I could find are the Tumblr Incexting VIDEO captions. Those were really well-done and I don't think even one of them is online. The strange thing is I think they disappeared from Tumblr long before the porn ban. Their stuff was so good it even made me jerk off to b/s.
It's all gone now, like cum in rain...