The system does not allow good candidates to make it through to a vote. (When it does, they are quickly either ejected or “brought in” to the system.)

There are other, more effective ways to vote than at the ballot box. Money, time, voice (depending on your reach), protest, direct action can all have a greater impact.

IMHO building parallel systems is the most important thing right now, as the primary political system is entering a period of crisis that it may not survive. Parallel systems, especially strong local systems, have a long and successful history.