Video games became a lot better when developers stopped saying, "You just haven't taken the time to learn it and don't understand it", and started saying, "That's my fault for designing it that way. Let me redesign it so that it's accessible to everyone in my target audience". I wish programming languages would be humble enough to do the same (although many are!).
The problem here is that it wouldn't matter if you made a better language for styling web pages, because you have no vector to get that language included in browsers; and even if you did it would take years for it to get enough market penetration for you to rely on it as something you can deliver an app in. So, you'd end up with some horrendous compatibility layer that compiles everything down to nasty CSS anyway.
Same problem with Javascript. Here we are compiling Typescript down into it... and running JS on the server with Node in order to avoid the classic impedance mismatch we all had back in the day writing backends in PHP etc.
Feels like the real solution would be to allow browsers to become more flexible with language implementations instead so we can make more progress. WASM might be the ticket there?