[Seirdy]

Everything you described can be done with progressive enhancement.

Only three engines exist that work well with JS; if we want our sites to not be dependent on behemoths like Google and Apple (Google is Mozilla's income source), we need to build sites that don't depend on their software (Blink, Webkit, and Gecko). That typically means not requiring JS.

People who block JS do so for good reason: when they open your site, they have no reason to believe that the JS being served isn't malware. If they disable and inspect it, they have no reason to believe that the scripts won't change the next time they open your page. It's safer to just leave it disabled.