There’s nothing in history that shows these bad numbers, approval, wrong track etc. and yet minimum or no loses. Then again, there was nothing in history that showed a candidate winning the presidency by 7 million plus votes and losing 13 house seats along with 2 state legislatures and a governorship either. These things don’t happen. Never have. That is until 2020 and today. Perhaps history doesn’t apply anymore in today’s modern political era of polarization, the great divide and the super, mega, ultra-high partisanship.
History never applies to polling. Polls are simply a set of numbers and without context for each snapshot they are meaningless. You appear to believe the historical set of numbers is the context and you can thus derive conclusions from that set. Otherwise you would not have typed " These things don’t happen" and "There’s nothing in history ... ".
Polling numbers are like coin tosses .... neither has a memory and there is no such thing as "history", only a set of data points.