The best way to bypass their restrictions is to stop buying Apple devices.
Apple needs to be forced to enable alternative app stores, like Microsoft got forced to offer alternative browsers, because they will never do it on their own.
Since these issues are increasingly covered in the media and people are waking up to these issues, I am optimistic that things will change for the better in the near future.
I don't buy Apple devices, and so am not affected by their restrictions.
Even if for the simple reason that I find other OSes and devices that run them shit in comparison.