On the right: Trump denounces white supremacy on Wednesday while speaking to John Roberts’ wife.

On the left: 24 hours later, John Roberts wonders why Trump hasn’t denounced white supremacists.

Since Marbury v Madison the Court has become the final arbiter of ‘constitutionality’.
A majority of Justices inimical to rights could easily rule that any gun ban, e.g. Feinstein’s “Mr & Mrs America turn them all in” is constitutional if such a law was ever passed.
(and Dianne files such a law every new congressional term)
You’d wind up with a de facto repeal. We’re not stupid.

I figured it right. But then, it really didn’t take a lot of figuring.