The choice is between a very expensive and heavily walled garden Apple iOS or Android where your experience can vary.
While Apples growth rate has fallen, i'm am sure there is a reason why it can charge over 2 x high-end premiums. Hint: It has nothing to do with the hardware.
Meanwhile, banning a handful of Chinese phone manufacturers does absolutely nothing to address your "only 2 phone OSes" concerns. In fact, it further validates my previous comment, because now there are fewer OEMs operating in the US who could introduce an alternative to Android or Google.
I'm not sure I understand the argument you are trying to make here. I agree that having new OS opportunities is a great thing, but removing competition from the US market means there's less incentive for companies still in the US market to create alternative operating systems. Are we basically saying the same thing?
While Apples growth rate has fallen, i'm am sure there is a reason why it can charge over 2 x high-end premiums. Hint: It has nothing to do with the hardware.