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.
He already wants to send people to Gitmo, you don't have to sell him on it even more