The lesson learned from Ukraine is that importation of drones is a terrific asset, rather than a liability. Maybe you think that lesson would not apply to the USA, but that wouldn't be a lesson learned from Ukraine, rather the lesson learned would be the opposite.
The lesson from Ukraine is the importance of having access to drones. It doesn't take any remarkable mental feats to realize that if your primary source of drones is China, then that access may not be reliable in the event of conflict with China.
The lesson learned from Ukraine is that a robust drone supply chain is very important. For some countries it doesn't matter if this supply chain is rooted in China, for others it matters a lot.