Oh, right lets replace cheap simple and dumb artillery we can't produce with super complex guided missiles with 1/10000th the production capability.
A conflict like Russia/Ukraine isn’t happening with the US. A US / Russia conflict would have resulted in US air supremacy or a nuclear exchange.
That might still be a bad tradeoff given that these 155mm shells are apparently $8,000 each, whereas a Storm Shadow is apparently $3,200,000 a pop.
The alternative is guided artillery shells. And those are damn expensive.
But anyway, the golden bullet solutions is drones. /s