So the only people left are the ones mining coins and skirting KYC/AML laws and I think that leads to a scenario where they'll gain a reputation of being a "nefarious" technology even though there's _some_ merit in the idea.
DNS based censorship by western countries is a risky game IMO. That makes the system vulnerable to a developing country coming in, setting up alternate DNS roots, and refusing to filter / censor for copyright infringement. It won't take much for western users to learn they need to use a foreign search engine to find things the western countries want censored.
China's citizens will be using US search engines and US citizens will be using Chinese search engines. Lol.