This year I learned they are maximizing their profits again and close in the branch that handles assembly and shipping. Moving to a more economic location to save a buck.
Your ideology goes against the nature of greed for those that have money and use it to maximize their own profits and harming those that help start and drive the business.
Even customer service as outsource to Asia.
The phone itself is quite different in some respect to other mobile phones e.g. parts of the phone that would be on the SoC are on removable M.2 cards. It is a niche product, meant for a particular audience. You are going to be paying a premium even if it was manufactured in offshore.
I pay a premium on any add-on/upgrade card to my Amiga. These products are made in smaller batches and thus cost a lot more than simply getting an ARM chip and emulating it. I accept that because my use case is extremely niche.
2. 20% isnt close to enough of a premium to manufacture in the US.