He hasn't met the burden of proof for this claim.
You want him to publish his contract? Ooops, he tried that. It showed that Kanye's deal is "standard" for the industry, which doesn't mean it's in any way fair.[0] He's also explicitly said he's doing this for black artists in general, not just himself.
You want him to try to change his contracts privately? Oops, he tried that; his label has deep pockets and just settled privately rather than changing anything.
Many others have tried and they just get buried in lawsuits, sometimes blackmailed (their next releases won't get promoted),[1] and even if they get out, their past albums are still owned by others.
Burden of proof is for exceptional claims. In an industry where egregiously unfair contracts are the norm, the exceptional claim is that Kanye's contracts are fair.
[0]: https://www.rollingstone.com/pro/features/kanye-west-record-...
[1]: https://www.okayplayer.com/music/rappers-bad-contracts.html
Kanye made specific points that the contracts are unfair, with 'talent' not being paid fairly, and having their creative freedom restricted. He also argues that control over distribution is essential, and black people are underrepresented both as record label owners, and as distributors, therefore leading to a huge power imbalance. All those facts are true without needing to go into the 'Jewish' stuff.
People who focus on that controversy are helping these scum-of-the-earth industries survive for longer than they should. Artists should own their output. They need managers and agents, but those should be employees and contractors, not "owners".
I personally don't care to psychoanalyze Kanye, it's none of my business and none of yours. He has objectively been victimized, and became successful in spite of it. I empathize with him and hope what he points out will be resolved.
https://www.vice.com/en/article/y3gmjw/bad-deals-are-baked-i...
https://www.bbc.com/news/entertainment-arts-55366694
https://www.rollingstone.com/music/music-news/music-industry...