I'm fed up with this "MAGA supporters need to hear this" nonsense. We've heard you. You're wrong. Your points have ben considered and rejected.
As to the question of why people believe Trump, the answer is that he's one of the precious few politicians who campaigned on doing certain things and then, lo and behold, he actually did or tried to do those things. The whole 30,000 lies thing comes from media "fact-checkers", who themselves have ben caught in innumerable lies or at least inaccuracies. Why do you trust them? Many of these "fact-checks" consist of "fact-checking" obvious hyperbole, twisting Trump's words, or even "fact-checking" his jokes.