I understand data sovereignty in the case where a foreign entity might cut off access to your data, but this paranoia that storing info under your bed is the safest bet is straight up false. We have post-quantum encryption widely available already. If your fear is that a foreign entity will access your data, you're technologically illiterate.
Obviously no person in a lawmaking position will ever have the patience or foresight to learn about this, but the fact they won't even try is all the more infuriating.