If keeping China off the most advanced nodes is truly all we want then why are many policymakers alarmed by the prospect of China dominating legacy chips? If a

If keeping China off the most advanced nodes is truly all we want then why are many policymakers alarmed by the prospect of China dominating legacy chips? If advanced nodes are crucial to military development then why does the most advanced jet fighter in the world still use 90nm nodes? The priors are very suspicious if you ask me.