It just feels so petty. Not a single person reading “less cops” was confused by its meaning. I get fighting against misuse of your/you’re, its/it’s, etc. because they can make things harder to read. Fewer and less, though, have the exact same underlying meaning (a reduction).
I’m something of a grammar Nazi, but just like I support letting “whom” die, “less” and “fewer” might as well just be interchangeable. There’s no loss of language utility in doing so, unlike “literally”'s tragic demise.
Literally has been used for emphasis, hyperbole, and metaphor since at least the late 18th century.
I’m aware, but it was done so sparingly, as opposed to being used to mean its opposite far more than its original meaning nowadays.