> Since Apple isn’t able to handle legitimate requests to disable the Activation Lock like mine, you should turn on Find My on your own MacBook, or risk it becoming a brick like mine.

Or don’t buy overpriced gear from a company that is aggressively user-hostile. Take them to some kind of small claims court. It is your device, you purchased it from them, and they have no right to refuse to un-brick if they have the ability to do so, just because you didn’t do the magic handshake in the right way.