Primaries are a mixed blessing. All one need do is register with a party label and you can run in a primary with that label. Then, since primary elections are not elections with the greatest turnout, primaries get won either by name recognition or “activists” who work on turn out for them. Then take a district where a party is only sparsely represented at all and the only candidate can be a kook. The GOP Illinois should at least have their own advertising campaign NOT advocating a vote for the Dim, merely disavowing this kook.
If the GOP really wanted to win, they’d be finding DINOs to run in ‘Rat primaries.