But China needs overseas tech companies in general. Pissing off the biggest one is not very smart.
It chooses. Not needs. Apple has said so.
http://www.theregister.co.uk/2015/12/21/apple_60_minutes_interview/
(says it from the get go, skilled workers... with all the corporate welfare Apple gets, I'm amazed it won't help train Americans.)
http://www.huffingtonpost.com/scott-paul/tim-cooks-views-on-americ_b_8854910.html
http://recode.net/2015/10/27/apple-ceo-tim-cook-wants-you-to-know-chinas-really-really-okay/