Nope, the US government seems to be deadly serious about this, and with good reason. Software security is a absolutely a critical national security issue at this point.

You can't just hand wave the entirety of the C/C++ ecosystem away.

There is no second option for many applications or hardware

Both admins want this to happen, one will just grant more exemptions than the other.

DOD mandated that all systems be written in Ada, that lasted about 5 minutes. DOD also fails to properly fund programs and properly manage them so there are critical systems literally still depending on DOS.