It's amazing how you do not understand the system. There is no path at for Trump to be 46. He currently is the 45th. If he had been re-elected, he still would have been the 45th. Biden will be 46. If he is re-elected for a second term, he still will be the 46th. If Trump were to run again in 2024 and win he would also be the 47th.
Multiple people have tried to explain this very simple concept to him & he just doesn’t get it.