If you have homeowners insurance, check with your own company to see if umbrella coverage is available and whether it would cover you in these countries. Umbrella coverage is generally pretty inexpensive if combined with a homeowners policy.
That's an easy one to overcome. When you list your drones for sale (wherever you decide to sell them), disclose the reason you're selling them (because you fear DJI is going to be banned). There's a huge market of people who don't have the same...