Well, is there a legal basis for Apple charging this fee? I'm licensed to use Xcode presently, which means I can legally produce iOS binaries without paying them. I'm legally allowed to distribute those binaries because I own the rights to them, the apps being original works (and not derived works).
What, specifically, is the core technology fee for other than dissuading competition? It's not for using Xcode (I already have that now), and it's not for redistributing Apple software (iOS binaries aren't that). What technology specifically? Is it a software license? Is it for a patent license? Is it payment for a service? What is it?
Have you actually read the licensing terms you agreed to for Xcode and Apple SDKs?
> Except as otherwise expressly set forth in Section 2.2.B., You may not distribute any Applications developed using the Apple SDKs (excluding the macOS SDK) absent entering into a separate written agreement with Apple.