US bans will only serve to motivate the Chinese to work harder to develop its own independent technology ecosystem. It is painful today and tomorrow but it will be a boon for the Chinese in the long run. By looking at the long history or rising power vs established power, established powers always try to sabotage rising powers in order to maintain their status as long as possible. Eventually, rising powers will succeed. It has happened with the UK overtaking the Spaniards, the US overtaking the UK, the Germans overtaking the British before WWI. The US is desperate to delay the painful process.