Everybody already knows and uses React and I had to repeat a tag name once only (barring the hidden React.Fragment). Sure it'll be clearer and more uniform, yet somehow you're typing this in English instead of Esperanto, Volapük or Toki Pona.
It's fine that you don't understand how the Clojure ecosystem works, but you don't. No one would bother listing hiccup, which is very little more than a convention for representing HTML.
OK, fair enough, a search for JSX doesn't give any results either. To step back a bit though, there's 1 job with Clojure listed on my country's biggest job board. React? 3200.
My whole point was trying to prove that you don't have to have something new and obscure to enable something but it's already there in something that almost everyone is using already. And then you replied that you can do it cleaner in something objectively vastly more obscure. Yes, yes you can. I'm sure you can.
https://hnhiring.com/search?q=hiccup "0 jobs found"