Nothing is set in stone, and humanity is resilient to technological changes. Countries that had stasi before no longer have them.

We need a collective will as a society to reject surveillance and the technological tools used to enable it. It should be disgusting to civilized people, it should be taboo. A good place to start with that is the EU GDPR regulation and the EU AI regulation, and grow from there

Carry drives in your carry-on. You are unlikely to be stopped. Worth encrypting them and backing them up remotely though if you are worried about it.