Math & Chaos theory says you have to get rid of FPtP voting before that can happen.

There is a reason the GOP is making other voting methods illegal in states they have control over.

Then, even if you manage that, those parties have to do the work at a local level. The Democratic Socialists seem to be the only 3rd party that understands that. The rest of them are nothing more than novelty parties or outright spoilers.