I do not debate you to change your, or anyone's, mind. I have repeatedly stated that since '09 when I was invited here.
Essentially, whoever engaged me is irrelevant. What counts are the unknown number of silent readers out there who want to see diverse viewpoints, especially when much of the opinions are illogical, ignorant, emotional, and childish.
Saying that the US somehow 'prevent' other countries from buying Chinese airliners is illogical, ignorant, emotional, and childish. The US cannot force France to buy US fighter airplanes, right? Germany and the UK collaborated to create their own fighters, right? Same with airliners. If China want the C919 to fly in
ANY country's domestic airspace, the C919 will have to certify
INDIVIDUALLY, right? If any country want to grant the C919 an exemption, that is their prerogative to do so, right? If the US want to accept other countries' safety standards, that is also our prerogative to do so, right? So what is your problem?