Trumps party is not conservative though, it is reactionary. Real Conservatives became never Trumpers. Real conservatives recognise that Biden is actually more conservative than Trump.

Every democracy has a large right wing party and a large left wing party and power changes between them over time.

Trumpism is neither and us destined to fail which will temporarily give the Democrats a boost when it does leaving the GOP to try and work out how to be both conservative and diverse at the same time. Hint: it means being much nicer to immigrants and being economically more pragmatic on things like healthcare.