And none of the programmers who don't learn calculus will use it.
I am surprised by the places where calculus comes up. I certainly didn't thing e.g. a class titled "Discrete Math" would need it, but it did. And Discrete Math is to CS what Calculus is to Physics.
They will all could have used calculus at many points, and even more so algebra, combinatorics, statistics, and geometry (in game dev, UI work in canvas an many other places).
But many wont, because they don't know it, so they'll trust some random formulas handed over by others (perhaps in Stack Overflow) for some things, or constrain their work and output to what they know.
Same way somebody who doesn't know about X technique (not even that something of the sort exists), wont know that there could be a great solution to the problem he works on based on that. So he'll use a subpar solution (in performance, memory wise, or even correctness), working around his limitation - or be beholden to this or that library that offers it as a black box.
Take a simple example: scoring systems.
It's funny how many websites use crappy scoring implemented by a developer that 'doesn't have a use for math', and e.g. naively averages scores, and ranks a movie with two 10/10 reviews above a movie with a thousands of 9.9/10 reviews...
And become a programmer who doesn't know calculus?