The sooner this guy is impeached the better. That's better than letting his term just run out as it offers more of a warning to other fruitcakes out there: the system _eventually_ works.
That isn't the way it works, there's no "three strikes" law for Presidents. If all of his extant corruption, clear senility and incompetence, throwing the global economy into chaos tumbling ass over end into an unnecessary war he can't even win and the Epstein stuff didn't get him removed from office, then this won't.
What we need is a form of legal redress more effective than a stern talking to, which is all impeachment amounts to.
There is a form of legal redress - following through in the senate with impeachment. Trump had sufficient allies in the senate when he was impeached so they dismissed it but if instead they had a 2/3 vote he could've be removed from office.
They gave Trump presidential immunity partly because the remedy for addressing any perceived lawlessness, they figured, is provided by the impeachment process. If impeachment is forclosed as even a possibility, the president is truly immune from any consequences.