It’s an old problem, one that has long undermined left-wing movements in this country. They have often prioritized purity over victory. They wouldn’t necessarily put it these terms, but they have chosen to lose on their terms rather than win with compromise.
…By designing campaign strategies for the America they want, rather than the one that exists, progressives have done a favor to their political opponents. They have refused to make tactical retreats, which is why they keep losing.