Isn't this a self-fulfilling prophecy? Make it nearly impossible to create a new language with a sufficient amount of backing tooling, and sure, you'll find that nearly all new languages should not be used.
I had a similar thought chain. I came to the conclusion, though: You're always going to need people to learn how to build compilers and parsers and lexers. But for a language to be taken seriously, you kind of need a group of people. but from another language or languages. To be analogous, if John Carmack was an indie game developer tomorrow, we'd all buy his games probably. But if I publish a game tomorrow, how many of us are buying it?
Now, imagine five semi-core devs of Python get together and make a compiled language.
edited because i use a local llm on my phone for speech-to-text and i was testing with nearly white noise (fans and aerated water...) "FUTO"