Oh is that simply what he is doing? This seems a charitable read given his confused comment about "blackmail"

He looks, sounds, and acts unwell. But even that doesn't really excuse his behavior, just explains it possibly.

IMO you might be overindexing on the usage of that word. It is clearer what Musk means in context. Again, he is simply saying that he won't let advertisers pressure him into changing X. That is clearly all he means by "blackmail" even if the actual usage of the term is incorrect.

He is fine, his values simply don't align with most peoples'. He is acting quite consistently with his stance on how he wants to run X (eg profit is not the primary goal.)

Thank you for clarifying that. I was confused. All hail Musk.

Do you honestly think that he doesn't care about huge drops in advertising revenue?

He has said that he's fine with running the company at-cost, and that profit is not the primary goal. His actions have been internally consistent with this statement.

I would be surprised if that were viable without advertising, but I guess we might just have to wait to find out.