And it's a bad argument anyway. You're only good at memory management until the first bug takes down production.

Rust isn't a panacea and certainly has problems, but eliminating an entire class of potentially very dangerous bugs is a very good argument.

Note that Rust does not "solve" memory management for you, it just checks whether yours is memory safe. Initially you might rely on the borrow checker for those checks, but as you become more and more used to Rust you'll start to anticipate it and write code that already safisfies it. So ultimately you'll still learn how to safely deal with memory management, just in a different way.