Like Hitlery wants to eliminate the Electorial College.
Primaries are each party’s business. They’re trying to do what they think will best accomplish their mission: Pick the best candidate to win the election.
Each time out, the losers tend to haggle with the system in order to avoid the mistakes they made last time. And succeed in making new ones, which they then try to avoid the next time, and so it goes.
But it has no business being regulated by government. It’s a party affair.