h/t u/3andfro for pointing me to this article, which seems to show this is more than the usual toothless posturing. As I pointed out to u/3andfro:

The details of the indictment in combination with Hunter's own memoirs - wow. As ZH notes, he "spent like a man who thought he operated under a different set of rules." More than a half a million for hookers? And that's while average Americans struggle to keep a roof over their heads and food on the table. This is elite privilege writ large.

To your point, the fact that the indictment mentions his financial bonanza from Ukraine and China, it does seem like there's an inside plan to make Joe step down, no doubt because he's turned everything he's touched into an unmitigated disaster and is currently doubling down on making the US even more of a pariah by not just ignoring genocide but actively aiding it.

And, too, it's pretty obvious the American people are royally pissed at the current state of their own lives, thanks to the free-wheeling lifestyles of those who make the rules. Maybe they decided it would be no loss to throw the Bidens under the bus since they're the poster children for corruption.