If your solution to Biden is Trump, you're an idiot. Yet, that's the sort of talk I've seen on Instagram. Biden gets picked on for being "cognitively impaired", but have they heard Trump? Trump's also a scandal-plagued sore loser who thinks everything is rigged when he doesn't win. I know Biden's gotten flak for his recent Israel speech, but do they not remember Trump's words in October? I'm not a huge Biden fan, but if you think Trump will be better for Israel, you're sadly mistaken.
I still think the best way forward is for Biden to run as VP to a new, exciting candidate. A sitting Senator with a Dem Governor like Warren, or a blue state Governor like Locke.
Best of both worlds, best for the country, best chance to ensure two more Democrat terms, taking us to 2032 before a possible loss.