what's the point of FP if processors are still Von Neumann?

You are shooting yourself in the foot by thinking in a manner inconsistent with the computer.

>>17
No, they never respected computers and programming. The Backus paper "Can Programming Be Liberated from the von Neumann Style?" is dated 1977.

is responsible for the dumbing down of computer science

In their minds, there shouldn't even be a "computer science". Algorithmics? Sure. Algebra? Yep. Those are sound areas of math. This weird thing with "pointers", "data structures" and "classes"? No way. What do you mean I can't substitute an expression with the one it equals? "Side effects"? Pointers getting mutated? We can't be bothered with this unmathematical shit, it should be just automated away.

Every FP innovation from garbage collection to lazy evaluation to immutability-based parallelism has been aimed at reducing the skill and knowledge level necessary to be a programmer, which led to code monkeys who don't understand the computer because they don't need to. Whether that is good or bad depends on a choice of perspective but one thing is certain: nobody hates programmers and has done more to destroy the profession than the FP crowd.