The Biden family will get back at the plotters... if it is the last thing they do. How? At the Dem convention, Joe, Jill and Hunter will walk on stage with MAGA hats and tell everybody to vote for Trump. They will have to forcefully remove them from the stage.
That would be something.
He'd love to but my guess the "plotters" have plenty on Biden, and not just the 25th amendment. His best leverage to stay in office now is the risk of him pardoning his family and himself before the election. If he wanted to be really nasty, he'd pardon Kamala, BHO and Hillary too, for something.