There is an established playbook that the Chinese have used for decades when taking over an industrial sector from other countries. They funnel vast amounts of state funding into it, sell at or below cost for decades, win the low end market, and then slowly and gradually move up the technology chain. It's worked for almost everything, but it's this last part that just isn't working for them with semiconductors and aviation. They aren't capable of catching up fast enough in these two fields. These are sectors that are both too large for any one country to do well on their own. Even for someone as large as China. It requires a global supply chain.