they can be done with a UASF by adding a witness version and implementing a verifier. the whole reason we got segwit was because people bypassed this authoritarian bullshit from core. now also luke is doing the same thing, just look at bip-110, it blocks spending from "unrecognised" witness progra...

Bulletproofs are a distraction, Liquid's CTs serve the elite, like Blockstream's Adam Back.

Bitcoin's unelected rulers will never allow bulletproofs, it'd decentralize too much power from Blockstream and Core devs.