The point is that if, at the very beginning, the video claims something that isn’t true, then I have no interest in learning about the other falsehoods that are likely to be contained in that video.
I've seen other accounts that Ruby's lawyer appointed Jolly West. I'm not sure if O'Neill is wrong or maybe should've given more details. Your expectation that every detail be accurate seems unreasonable for an informal live interview. In live interviews, it's pretty common for guests to err on some details that they discuss. Especially an informal interview like Joe Rogan's podcast. I just don't think that detail that you're referring to is the most relevant information that he shared.
If you watched the whole clip (it's not that long), O'Neill explains that he's not an expert on the Kennedy assassination. He just happened to come across the West-Ruby connection while researching the MKULTRA program.
I think I remember reading in the article you posted that West claimed that he had no knowledge that the CIA was funding the research until many years later.
Like other CIA assets, he might've lied in his denial. How many people in history have admitted to being CIA assets? Carter Page, one of the people caught up in the Trump-Russia investigations, is the only person I can think of. (
https://www.foxnews.com/politics/carter-page-says-he-was-never-paid-one-cent-for-serving-as-cia-fbi-informant-as-bureau-paid-danchenko-200k)
It's legal for people who work with or (undercover) for the CIA to lie about their relationship with the agency. I imagine they get into more trouble for telling the truth than they do if they lie about it.
But even if he told the truth, are you not familiar with the MKULTRA program? It's one of the worst crimes against humanity committed by the CIA. They conducted experiments on unwitting Americans without their consent. An unknowable number of people died due to those experiments (only two people are confirmed to have died in the program). So the fact that West spent years working on that project is bad enough.
If people were aware of MKULTRA in 1964, I doubt West would've been allowed to treat Ruby.
At any rate, the idea that West “might have caused Ruby’s mental decline “accidentally on purpose” is just another example of the conspiracists’ MO of conjecture and innuendo. If there was any credible evidence that this actually happened, you would surely have stated it by this point in this conversation.
Ruby wasn't diagnosed with psychosis until after West began working with him. Coincidence? Maybe. But given West's background as part of MKULTRA, a program that included researching techniques for inducing psychosis, it can't be ruled out that something fishy happened.
Obviously, we'll never know but It seems very naïve to brush it off as a possibility.