there's the backstop of impeachment, but then if you can't successfully impeach a guy who just literally led a violent mob to disrupt a joint session of both houses, idk man
Plus, imagine if the officials were afraid not just for their careers but for the lives of their family and friends if they voted to impeach?
Oh wait, that was already true last time
Even aside from how it's politically a high hurdle and vanishingly unlikely to get to two-thirds for conviction, the impeachment power is meaningless if the literal physical ability of Congress to meet and conduct business has no protection from a president determined to forcibly violate it.