A solution without a problem. Having worked in DoD procurement for 5 years (albeit a generation or two ago), foreign purchases are fairly rare, and when they do occur it is simply a matter of no U.S. provider being available. Every single non-U.S. purchase has to be fully justified (a pain in the ass, of course), and it has been that way for longer than Our Exalted President has been "in government service." And saving money is NOT a legal justification under the Buy America Act.
One thing that does occur, for example, is that you cannot buy large steel castings in the U.S., BECAUSE OSHA SHUT DOWN ALL OUR BIG FOUNDRIES FIFTY YEARS AGO.
Biden and his Lefty supporters couldn't care less about people who work for a living in the private sector, as anyone not wearing blinders has already deduced.