I would guess that the reason for any downvotes is that even if what you wrote is completely true it isn't really relevant, because the current problem is not lack of competition. The current problem is a huge increase in demand over a short time.
Even if there were no restrictions on China and they had latest generation fabs, they would not have had latest generation fabs just sitting around idle. They would be unable to meet the current increased demand for exactly the same reason everybody else can't.