Best protection is anonymity. But in your scenario, which I fear is too likely, anonymity is broken, and all KYC purchases are leaked. The only remaining option, then, is leaving for a safer jurisdiction where property rights are respected and enforced. A country that welcomes bitcoiners and protects them, in exchange for their spending their wealth there.
The main hitch in leaving, as I see it, will be selling any real estate / large assets you own, ahead of the major bitcoin price appreciation. Otherwise you may be forced to abandon those. I hope this dark scenario can be avoided, and it should, if the game theory of different countries plays out with all of them vying to retain and attract bitcoiners.