Total pipe dream. They can't take away your servers, but they can imprison you until you provide access. And SpaceX would still fall under the laws of whichever country it's based in. If lawful access is really a problem, laws will be written to make it SpaceX's problem. Relevant XKCD: https://xkcd.com/538/
What if your server fly over france , but not in France, hence: you don't need to build servers in france, unlike before, you don't need to deal with local government on so many issues, water, electricity etc to be local in france.
And , taxes : crypto payments + compute , and same transaction in france doesn't have to be taxed anymore :)
Yes, you have to pay taxes to US government, but not to france.