There are two things mixed up. "We need secure DNS" != "we need DNSSEC".

There is a huge demand for securing DNS-related things, but DNSSEC seems to be a poor answer. DoH is a somehow better answer, with any shortcomings it may have, and it's widely deployed.

I suspect that a contraption that would wrap the existing DNS protocol into TLS in a way that would be trivial to put in front of an existing DNS server and an existing DNS client (like TLS was trivial to put in front of an HTTP server), might be a runaway success. A solution that wins is a solution which is damn easy to deploy, and not easy to screw up. DNSSEC is not it, alas.