I am closer to being on "your" side with respect to much of this than you can possibly imagine (or believe, I'll wager).
That aside...
The Republican Party consists primarily of White Folk of all walks of life, with some recent on-boarding by modest numbers of Hispanics.
The Democratic Party consists primarily of White Folk and just about all the Black Folk and a continuing majority of Hispanics and other races.
Translation: the White Vote in this country is split, whereas the Black Vote and the Hispanic Vote and the Other Vote are still largely owned by the Dems.
With the White Vote split the way it is, you cannot win without substantial support from Independents and substantial cross-over from Reagan Democrats.
And you're not going to get the support of Independents and Reagan Democrats after January 6, 2021... non-GOP folk realize that Rump is not to be trusted.
It's really that simple.
Keep the Rumpian Agenda... most of it is just what is needed... especially after the Idiot Dems have screwed things up so badly.
But if you run Rump again those Independents and Reagan Democrats are either going to pull the (D) lever in the voting booth or stay at home in 2024.
Act... while there is still time TO act.