” Uranium reactor makes bomb material, with power as a sideshow. “
None of the US uranium power reactors are used to supply bomb material.
Uranium reactors were chosen because they can make bomb material. Whether they are used to supply material for making bombs right now is irrelevant.
Choosing a reactor design that requires water at 70 atmospheres to produce “power” is just stupid. But that is the predominant reactor design that we have now, because that is what the NRC will permit, and nothing else.