It would be incredibly stupid to switch out Biden now. Who would we replace him with thar we’re so sure would beat Trump with this little time left until the election? If the plan was ever going to be to replace Biden, he would have had to step down at least 5 months ago.
Just because our side isn’t as popular as you’d like doesn’t mean we don’t have democracy. Now what we do have is a flawed system with lots of mechanisms for a minority party to grind the gears to a halt, and incredibly low voter turnout especially among the far left.
The only way out is to vote in a supermajority of reps who want to fix the system. So vote blue this year, and start building an electable coalition for next cycle. Don’t just stand there, do something