Agreed, the situations are very complex but the dice could fall in a good wayI like your post.
The world is in a parlous state, but all is not lost yet.
Trump must lose, and I think when push comes to shove, although people don't like Biden and have their concerns over his long term health, they will look at his economic record, look at the legal mire which Trump is in, ask whether they really want him and all the turmoil back ..... and just ... on a small turnout .... return Biden. MAGA, I don't believe have the numbers. The aftermath won't be pretty, but it can be dealt with.
Putin must also lose and Netanyahu and the bonkers faction within his cabinet must be reined in. But free from the need for re-election Biden will be able to deliver a foreign policy to deliver him a decent legacy. Of course so much will depend on Congress make up, which I admit i'm less confident about.