If you feel that way, you should (and I am not being facetious) throw away your phone, get a land line, a linux tablet, and hell, maybe a raspi running Asterix on your land line so you can talk on it from your tablet. Your philosophy is valid but the proprietary landscape of the phone-iverse is intentionally designed to make it unpracticable. You cannot use any SIM-based tech, let alone iOS or Android.