Trump has been a manic idiot who rambles constantly for 8 years. Yet he won one election and was 37,000 votes from winning another. He's now consistently polling ahead of Biden in most major polls and in swing states he's killing him. Yes, there's time for that to turn around, but things are bad at the moment. Focusing on Trump doesn't work. We've spent the last 10 years telling anyone who would listen that Trump is a literally insane person who is going to destroy our country. There are years of evidence of him being President and doing his best to destroy our country. All it seems to do is make him stronger. We've tried reporting on his insanity, ignoring his insanity, telling people how insane he is. None of it has worked. At best he's still right there, a small misstep from winning the whole thing.
Maybe in the end enough of the undecided voters break Biden's way and just can't deal with 4 more years of Trump. That's the upside. But that's a big maybe and frankly, if that was enough of a motivating factor to be confident it would break that way, they'd probably have already made up their minds just a few months from election day.
It's pretty clear that just convincing people of how scary Trump is isn't a strong winning play. At best its a win on a razor's edge. Joe struggling this publicly in a way that is getting this level of press just a few months before the election is a disaster. That doesn't mean there's necessarily a better option, but its a disaster. It's the sort of thing that could absolutely tip us the wrong way off that edge. Why would you possibly think focusing more on Trump's insanity will work now when it hasn't for the last 8 years?