In that case, can't the next president just illegally imprison Elon or trump or whoever for their entire administration, ignore supreme court rulings or lawsuits or whatever, and then issue themselves a pardon at the end?
Based on last year's Supreme Court rulings and what Trump/DOGE have gotten away with thus far, it'd seem so. However, democrats insist on wearing kid gloves to a chainsaw massacre, so don't count on anything like that (or, more realistically, within a lesser order of magnitude) ever happening.
Yes, and restrict the 2nd amendment by fiat, etc...
But Democrats "play nice" and respect the law. Biden could have ordered Trump assassinated as soon as the Supreme Court invented the new interpretation that puts president on a piedestal, but he was never going to do it.