I think Joe Biden is a corrupt idiot, however, I think America would survive him like we've survived previous idiot administrations. However, what is potentially fatal for America is half the populace believing that their elections are hopelessly rigged and they're eternally fucked. And now, however this shakes out in court, that's exactly what half the country is going to think.
People are pissed off, and rightfully so.
Before I became a novelist I was an accountant. In auditing you look for red flags. That's weird bits in the data that suggest something shifty is going on. You flag those weird things so you can delve into them further. One flag doesn't necessarily mean there's fraud. Weird things happen. A few flags mean stupidity or dishonesty. But a giant pile of red flags means that there's bad shit going on and people should be in jail.