

According to Wikipedia, on paper yes but in practice the duty to retreat has been upheld in case law.
Even if you have a jurisdiction with rock solid castle doctrine, using that as a defense for shooting at law enforcement is a perilous legal strategy.

In this case I think it’s distraction.
It’s amazing how easy it was to subvert all checks and balances and criticisms by just always having a few more awful things ready to go.
Video showing your paramilitary murdering citizens, boom release some Epstein files
Credible evidence that you are a pedophile, boom racist meme
People upset about racism, boom attack trans kids or something.
As long as there are a couple outrage plates spinning he can always just wander over to another one if people start getting too upset.