I don't know how much foreign help China actually needs but like I mentioned before Obama was the first to complain about China's domestic airliner industry and wanted to file WTO complaints before the first prototype was even produced. China including foreign suppliers was suppose to satisfy Western countries. So how much does China have to worry? It's like how over a decade ago China wanted to go by its own standard in things like cell phones and HD DVD players and the West threatened to take action because they would have spend the money to have their products work on Chinese standards. Trump cutting China off gives an excuse to go by China's original plans and the West can't complain now.