Encrypt your password store using gpg and zx2c4's pass! The GUI app qtpass even works on Windows. I've been using it for months and the system is rock solid and has never let me down.

https://www.passwordstore.org/

They can copy your drive all you want, and you have until 2030 to change your passwords.

Alternatively, just store them in a git repo on a server somewhere and access them remotely.