Microsoft is the last monopolist I find difficult to turn my back on because of Windows, but most others (Google, X, Meta f.e.) are pretty easy to dodge.
GrapheneOS, Proton, Nostr and Signal provide great alternatives imo.
MAGA captured a sort of christian nationalism which operates on a psychology of divine entitlement. Watch this video and pay close attention to what Bannon actually says (and how he contradicts himself multiple times).