It comes down to whichever outcome you think is more likely to happen. Either:

A) The Democratic leadership stops resisting, and starts doing what the voters want
or
B) A third-party will gain power

I think B is much more likely, as the Democratic leadership has clearly demonstrated that they'd rather let the Republicans win, than do what the voters want. If you want to try to make A happen, then be my guest. I hope to be proven wrong. But from watching the Dems in the past few decades, it's clear to me that B is more likely.

They are already moving quickly to end democracy in the US.

You mean the Democracy where we get to vote for genocide or genocide? or how about the bombing of those kids, vs those other kids? Or how about this mass surveillance system vs that mass surveillance system?