>>510294063 (OP)> a piece of paperIt is never just a piece of paper. If you get the piece of paper the IRS will follow you everywhere on this planet and you have to subject to American policy and rules. I am Chinese and I was a partner of an EDA company (cash out and retire to Thailand now) and oneday the CTO and tech lead (both Chinese) of the company just quit andd leave China immediately because America says Americans can't work for China semi related companies.
The paper comes with all the terms, conditions, regulations, responsibilities. You can claim that they are not real Americans or what but it is clearly not just a paper.