Almost all of these questions you are struggling with have been fully run to ground here on FR.
Every one of them has a satisfactory explanation.
Good luck on your quest for truth. I would approach it from the perspective of an engineering problem. Take each of your questions and work on them individually, until you get them all straightened out. Trying to wrap your mind around all that can keep a fellow confused.
Remember, how do you eat an elephant? One bite at a time.
Why would you be looking for a “satisfactory explanation” for why the President of the United States is incapable of doing things he promised to do? And why, given we can all admit he failed in these many cases (hence the need for “satisfactory explanations”) does anybody think that he would be any better at it the second time around?
It’s like the people who claim Trump won in 2020, but the election was stolen, and then claim that Trump can win in 2024 because the election won’t be stolen. If Trump, as President, in charge of the FEC, the FBI, and the DOJ, could not keep the democrats from stealing an election, even in states run by republicans, how could you possibly believe that Trump can stop it from happening in 2024, when Biden is in charge of everything, and two major states that are needed, which were run by republicans, are now run by democrats?
BTW, note that nothing in the way Trump has acted in the past year and a half shows that he has learned anything. He couldn’t even win a simple defamation case regarding a decades-old charge, in part because he could not trust himself to get on a witness stand and tell his side of the story.