As did the Republicans in 2020, and while that election still has considerable stink associated with it, it's not worth arguing about anymore!
Conspiracy theories aside, I believe Trump was his own worst enemy far more so than Biden being a viable alternative, and time has proven me correct. Had he stood on his accomplishments, and parked his ego in the corner for a while (yes, I realize that's an impossible task for him), he would/should have won re-election by a landslide.
I still cannot fathom what anyone saw in Biden, he stayed out of view as much as possible during the run up and let Trump put a noose around his own neck (probably the best strategy he could have used).
Personalities aside, there is no way anyone will convince me that Biden is a better president than Trump. For all is faults, Trump did get the economy going in the right direction and put this country's best interests before others. The current administration seems hell bent on sending it into the toilet!