I understand what you're saying but Apple can do something, like many other large brands do to protect their names. It won't stop the conduct but they can contact the FTC to express concern and offer assistance. When a company has gravitas like Apple, and wants to protect their brand, like Apple has repeatedly shown it does, it can help. The point is that, IMHO, Apple fell down on the customer service side of things. They should care enough to give us the ability to report it to them so when they get enough complaints, they can decide what, if anything, they may want to do about it. And there's an efficacy to letting us report it. For a company that thrives on setting the trends for customer support, they failed on this one. If it's an email, Apple wants to know. If it's a phone call, they apparently don't care.
Personally, I did block them. And before posting, I tried to complain the FTC. But the FTC complaint forms aren't applicable in this situation - the forms force you to include info that doesn't apply, such as how much $ the scammer requested. No easy answers to make it stop but customer service fail.