The parties have a lot of internal diversity within them, but partisan primaries select for the craziest views because that's who the current primary electorate

The parties have a lot of internal diversity within them, but partisan primaries select for the craziest views because that's who the current primary electorate is. Voting in primaries is already something in everyone's power, and doesn't require office-holders to vote in structural changes that aren't in their best interests. It's the most immediately practical way to effect change. I'm glad that you vote in primaries too; too many people don't, and seem to prefer to wallow in cynicism and inaction.