Correct.
Incorrect, unless Trump dies unexpectedly. Nice fantasy for you, though.
Two scenarios in which all charges against Trump are either dropped, or simply allowed to languish:
Most likely is that Trump wins and fully reorganizes the DOJ back into a crime fighting outfit (if it ever was). The DOJ drops all charges and starts investigating the prosecutorial misconduct of people like Jack Smith and Bowlegged Fani.
Less likely, but definitely possible, is that Trump loses. In that case, the Dems will assume that he is too old to run again, and will turn the DOJ's attention on more likely GOP future presidents, like Abbott and De Santis.
Trump won't be "in court" until he dies, even if the DOJ manages to keep their losing cases open. The anti-Trumpers hate going to court, becuase they get their asses kicked too often. They assumed that the indictments would break Trump, that he would drop out or that his supporters would say, "Well, if Jack Smith says he's guilty that's good enoug for me! I'm voting for Mitch!"
Now, that is an interesting idea.
You believe that the prosecutors will be allowed not only to search potential jurors' internet posting history, gaining access to their communications on anonymous forums like this, but will also openly admit to doing so, in order to get rid of jurors who support the current Republican frontrunner?
Will the defense be allowed to do the same to Biden supporters (if there are any left by that time)?
I'm not at all saying you're wrong. That's just the kind of thing the Democrats would want to do. I would guess that they would not be as open about it as you seem to expect. They will dig for as much dirt as they can but they will phony up reasons to DQ them, not admit that they are not politically correct.
No, I don't see them excluding Trump supporters. They will tell the non-Trumper jurors who will be expecting to see neo-Nazis giving the "Heil Trump" salute, Bible verse spouting anti-abortion fanatics, and trailer park dwelling, confederate flag flying, Walmart shoppers.
Imagine their surprise when the find out the Trump supporters are just regular Americans of all colors who are concerned among other things about illegal aliens flooding the country and robbing citizens of resources, something that black and brown New Yorkers, Atlantans, and DC Residents are growing more and more concerned about.