Re: I'm confused
What did you miss? Probably that the whole idea is a non-starter.
The DNS protocols are designed to be very lightweight. Most traffic is single UDP packets. There are good reasons for that. If you try to drop security/privacy into that you multiply the traffic, not to mention latencies, by more than an order of magnitude and people who know about this stuff have serious reservations about that.
This is not new. See for example https://www.quora.com/Why-does-DNS-use-UDP
What do I care if people know where my browser has been? Most of the time it does it on its own without my input anyway.