Hypothetically, this is worthwhile. However, in the real world, defense electronics is a small fraction of consumer electronics, and even in the Wonderful World of COTS, producing mil-qualified parts is a royal PITA (and space-qualified is even crazier!). So the incentive for an Intel or TI or On Semi or etc. to bring their fab and packaging back on-shore is not very great, and arm-twisting would likely backfire.