You can’t possibly say with a straight face the Catholic Church has not changed since 33 AD
the things that have “changed” were mostly stuff added on top of the original church (hospitals, schools, administration of responsibilities left to them since Constantine turned over the Roman Empire to Christ, etc.) but the same simple fishers-of-men church never changed at the core. Anything added by mere men is a distraction. There is only one “church” and all the rest is our own vanity. So catholics and latercomers should all stop bickering.