Not to mention physics, which is useful for understanding why things are the way they are. Which, is an important skill lest you fall into anti intellectual traps like flat earthism.

Calculus is a shared language in the grand universal ocean of intellectual cultural. Rejecting calculus is rejecting part of that culture…

I think their answer would be "why would I care how long it takes this ladder to slide down the wall?" Which STINKS don't get me wrong. This is not a group I take seriously.