Sometimes you're right but also irrelevant. For instance, if I started posting "2+2=4 and 1+1=2 and addition is associative so 1+1+1+1=4" then I'm right but also useless. So the correctness is irrelevant to the discussion.

We don't live long enough to examine every true argument. It is important to us to filter to useful ones. In that respect, starting the JS debate is the equivalent of starting a neovim vs xemacs debate, both of which are like chewing gum that's got all the flavour gone in the first hour.

Your maths example is incontestably true so no-one would waste time debating it.

Claiming js is essential to all modern browsing is not true and I am contesting it because in practice its use opens up bloody great security holes.

And you are still not addressing my obvious and relevant point, that not using js closes those holes. Stop downvoting and explain why you think compromising browsing safety is your right.