If it becomes the dominant way of serving web pages, you should realize that tor will add support.
Everything that goes over UDP is not supported as of 2018 and some volunteer project is going to figure this out?
Hubris.
If you wait a few years for HTTP/3 to settle, proxies will be available that could be glued into tor inside a weekend hackathon.
In 16 years they have not managed to support UDP and now you say of a project (you are not familiar with...), that they can get it up over a weekend hackathon.
And you are calling me ridiculous?
This speaks volumes for your predictive ability.
Good day, sir!
Tor doesn't have UDP support right now because it doesn't need it for anything. The last 16 years are not equal to the next 16 years, surprisingly enough.