You're right that this isn't about data collection/privacy, though it would be a bit scary to have our nation's cars remotely shut off at the whims of a foreign government.
Instead, we want/need to be protectionist of our manufacturing industries so that if we were to go to war, we keep our ability to make more missiles, planes, tanks, etc.
Instead, we want/need to be protectionist of our manufacturing industries so that if we were to go to war, we keep our ability to make more missiles, planes, tanks, etc.