Even if this were remotely true.
There was NOTHING Trump could do to fix America in four more years.
Fortunately, I can tell you two things.
One, Trump was no better than any other corrupt official.
-Trump did it for money and nothing else. (Not the Presidential paycheck. The millions (billions?) he's made from campaigning makes him no different than the idiots currently serving in office as nothing more than benchwarmers. And it very clear that he has only inspired a new breed of these benchwarmers who've turned our politics into tribalism that rivals sports.
That is arguably far more damaging than doing the good you claim he could've done.
Two, there are plenty of people in office, both Democrats, Republicans, Independents who understand the system is broken and want to make small changes over time to fix it.
-Ignoring them while pining about a showboating, internet troll who was easily overruled by the Electoral College and his own appointed judges does nothing to fix the problem you have with America.