Nice, is not a monopoly 
#4 wanted an US entry to compete now has no trouble picking up the retrenched local brains from #2. Apple has enough cash on hand to get busy on servicing (e.g. Apple pay, new apps for fee). They charge way higher so 10% tariff may be swallowed. As for Pixel it is not even on the list. I only see Googl employees carry the issued ? phones.