You know what, there’s a small chance they would if they knew. But let’s say the Pentagon stopped all silos and kept it hush. Russia and China would never know whether they stopped or where remaining ones would be.
It’s not the weapons itself that protect the USA but solely the fact they are probably somewhere and they know how to trigger them.
This is overkill. In every aspect. Need, justification, budget, maintenance. The definition of a US defense department toy. It’s a flex. But it’s a covert flex, which is the definition of stupid. We’re not talking trap track but government decisions and that boggles my mind.