"The government relied heavily on voluntary compliance, and there weren't many prosecutions for simply holding gold."

I think in general these fears are overblown.

I actually think the NOKYC wallets are the ones going to be targeted.

The question is how small of a stack will they go for?

Further, I think buying Bitcoins across the globe would be easier than you think in this scenario.

I personally would just leave the country, which is what most should do - it's the sovereign individual game-theory playing out.