React is the defacto standard of web development for a reason. That's not the reason you can't browse the web with JS (it would be Angular if it wasn't React or others). And just because you use React, doesn't mean Meta can track you.
Their point was that (i) React becoming the defacto standard played into the hands of Meta, who are interested in tracking people. (ii) Tracking is made easier by running arbitrary JavaScript in the browser. And (iii) before SPAs were big (pre-React), more people used to completely disable JS in their browser.
Not saying I buy this theory. Just trying to explain what I think they were alluding to, as I had the impression you missed it and went in a different direction.
