Dude, word roots are often far from their eventual meanings because language evolves. No one with a clue thinks of conserving when they say conservatism. If you want an argument over semantics, maybe there’s a linguistics sub? If you want to talk politics, you don’t just get to decide a word must only literally reflect its etymological root, rather than taking into account the actual actions of people and parties who have called themselves conservatives for the past 50+ years.