That would ruin a heap of movie plots though if the US no longer had a land based missile force...
Being serious, makes a lot of sense to me. Fixed land based sites don't make a lot of sense today. The US would probably get better value out of space based kinetic projectiles. Get Musk to deploy some bigger satellites launched via starship that host the projectiles and then the USAF/Space Force could move to precision orbital deterrence without the fallout while remaining backed up by the subs/bombers.
I'm still sitting on the fence between manned NGAD or just going all in on CCA and using F-35 as the primary control platform. So much faster to iterate across the CCA and continue building and upgrading a manned platform that the US is already investing in.