This is why its critical to be able to run nodes on regular PCs (including Windows Home) in people's homes, and not need external server providers.
This is what I am doing with my witness node to show the way.
BTW I've had 100% uptime for almost a month.
It will be impossible to enforce a ban if it would involve going house to house trying to find nodes.
But much easier if it just involves prosecuting a few companies and their US based Exec providing outsourced servers.