That's a good write-up but I think to reduce it even further/make it more relatable: we all know someone like JayJay. We've all been around some smart ass fucking nerd cunt who you instinctively want to just slap and combined with his stupid voice, dumb hair, retarded game, and stance on SKG you've got yourself the creme-de-la-creme of easy hates out.
He's the archetypal "Being smart is my entire identity" type, even though he's not that smart, and nowhere near as smart as he thinks he is. That's why he's never wrong and always finds a way to be "technically" right. He uses debate tactics to always appear correct despite being wrong, which is ultimately a mix of intellectualization and deflection, stemming from a need to protect his ego and self-image.
As you've noticed, he argues semantics, redirects blame, and employs rhetorical strategies to dodge responsibility. Psychologically, I think this might be a typical reaction to his own insecurity, fear of vulnerability, and a need to control how others perceive him.
Some people use humor to deflect accountability, which he tries to do sometimes, but he prefers his more aggressive "debate tactic" approach to dominate and manipulate the narrative. He thinks the consequences of admitting fault will lead to a loss of status or credibility, but the opposite would happen, people would respect him more.
If you've ever seen his father on stream, you can see where this comes from. It's a minor example but exemplifies Thor's behavior perfectly:
The dad made an insignificant mistake but externalizes the blame, even if it is just a joke. If you assume this is common behavior on his part, based on how quickly he comes up with the excuse for his minor failure, it's not much of a stretch to think that Thor naturally picked up on this pattern and found success with it, eventually trapping himself into this easy "winning strategy."
I know a self-diagnosed "smart person" whose life is in complete shambles because he's autistic as hell and won't admit it. From his perspective, everything is beneath him because he values intellect as the highest possible stat, so he's effectively soft-locked his life. Since he's already at the top of the mountain of life in his mind, he no longer does anything. He thinks he's won the game and is basically waiting for death.
He refuses to pass the mensa test for fear of failure and having to deal with the bleak reality that, no, he's not as smart as he thinks he is. He even refuses to play simple games with kids in case he loses. And I thought my life was depressing...
Anyway, I remember watching a video where very successful jew explained how he never told his objectively gifted child he was smart and never congratulated his intellect. Instead, he only valued and praised his son's hard work. That son became wildly successful in life.
Be humble, work hard. Therein lies the winning combo.
"Do you see a man wise in his own eyes? There is more hope for a fool than for him." – Proverbs 26:12