"If Trump really is feeble, tired and confused shouldn't the prosecutor drop the classified documents case against him?"
Had he cooperated from the start, sure.
But tell us: would Biden have been prosecuted if he'd lied about the possession, lied about giving only some of the papers back, forced his lawyers to lie under oath that he'd given all the papers back, and enlisted his underlings to either hide or destroy evidence?
You know, the salient differences.
" then go an prosecute people that have no victims "
Which of the four clearly delineated groups of victims, weren't:
New Yorkers stuck with a larger part of the Tax pie.
Investors rightly due larger profits.
Loan applicants shut out for telling the truth.
Direct competitors who aren't also cheating.
You're up.