UASF is clearly an effort to re-define what Bitcoin is.

From Bitcoin Paper by Great Satoshi Nakamoto Himself here is how consensus in original Bitcoin which is based on Proof-of-Work should be established. Miners use their CPU power to establish it. Quote:

"They vote with their CPU power, expressing their acceptance of valid blocks by working on extending them and rejecting invalid blocks by refusing to work on them. Any needed rules and incentives can be enforced with this consensus mechanism."

Establishing consensus with anything other than proof-of-work is not original Bitcoin. I don't say it will be a wrong kind of Bitcoin, it's just not original from Satoshi Nakamoto, that's all.