Psychologically I think its something akin to debasement / humiliation / size aspect making him feel "small", but the bigger aspect is his videos which seem to be possibly either sissification / gooner hypno which are designed / intended to "brainwash" via an overload of stimulation. Its really, really, really not healthy since it basically overblows the dopamine receptors, making everything completely fucked after since nothing feels good after, since your "new high" makes baseline seem shit, and old highs aren't the same, FAR more than regular porn. Its obvious he's worked himself up to that point of degenerate
I think those kind of porns in particular are practically speaking basically a psychological weapon. Its like when 4chan was full of those trap memes, its designed to desensitize people, and it follows a path SIMILAR in a way to how grooming works on a psychological level, just through raw repetition, Which is why "porn humor" is sick.
In the case of traps for example the repetition / desensitizing slowly goes from
-EWW TRAPs!!!!
-ewww traps.
-ugh, more traps again.
-more traps huh? whatever.
-traps? again?....I mean I guess one of them looks ok
-Traps?....eh, might as well try wanking why not
-traps? Sure I'm in the mood for it
-Ohhh, traps, the penis makes it better
END RESULT : turns someone into a faggot.
And with that particular hypno stuff, it has especially a tendancy to make people more suggestible, its by design. So you, DO NOT fuck with hypo stuff, its all bad.