If it were a lie, why take the PR hit of telling the truth about starting to train on user data but lying about the specifics? It'd be much simpler to just lie about not training on user data at all.
If your threat model is to unconditionally not trust the companies, what they're saying is irrelevant. Which is fair enough, you probably should not be using a service you don't trust at all. But there's not much of a discussion to be had when you can just assert that everything they say is a lie.
> Meta downloaded copyrighted content and trained their models on it, OpenAI did the same.
> Uber developed Greyball to cheat the officials and break the law.
These seem like randomly chosen generic grievances, not examples of companies making promises in their privacy policy (or similar) and breaking them. Am I missing some connection?