Also its not difficult. By virtue of the 3 section of the 14th Amendment Trump is an illegitimate President, and thus any and all actions undertaken by him are illegal and unconstitutional, all pardons are null and void. Of course most J6ers by now have be re-arrested on CSAM, so maybe moot point?
I vastly prefer the "pardon everyone" equilibrium to the "prosecute everyone" equilibrium, because it means fewer innocent people have to interact with the court system in any way.
I think it was hyperbolic on Biden's part to worry about a remote doomer fantasy Trump would weaponize the Department of Justice to go after his political enemies.