Not quite true. The two party system is an organic result of First Past The Post voting. Since voting is determined on the local level (as opposed to the federal level) it’ll be easier to change to Rank Choice and get somebody new elected that way.
Not “easy” mind you, but “easier”
This is the key component that the “vote third party” people keep missing.
The Democrats could have run a turd as a candidate with the slogan “it’ll be a shit show” and I’d still have voted for them with no regrets, because I understand that fascism is an existential threat. If the Democrats are to blame in any way, it’s because they didn’t try to get people to understand that OH WAIT THEY DID.
Should the Democrats have run a better candidate and a better campaign? Obviously yes. Is it their fault that voters were willing to let a fascist win? Not even a little.
She got it backwards, they side with Trump because Russia said so.