It’s not like they make it so other headphones don’t work - they just (until recently) held back their own invention for use in their own products.haha that's not quite an accurate comparison. Sony or Bose don't provide a platform (ie OS) holding back features that are made available for AirPods for no reason other than to give Apple an advantage over competitors. It's not exactly consumer friendly.
Kinda like how Bose holds back its noise cancellation algorithm for use in its own products.
Again, if Apple somehow created an amazing real-time translation algorithm that took input from the mic and outputted into the AirPods, but because it was so advanced it had to run run on the phone rather than the headphones, Apple would be required by the EU law to provide an API for that functionality to all of its competitors. In what world is that fair?