A Big Two party can nominate someone out on the fringes, but then they will cede the general election to the other party if the other party runs a centrist candidate.
Phew, I’m glad we could never end up with a President Trump leading Republican party running rightward as fast as possible then.
Maybe centrist political wisdom is actually just trash and things like charisma, inspiration, and vision actually matter rather than some idea that all voters are on a single axis “politics” line.