They would be breeder reactors then, using the fast neutron spectrum. Molten salt reactors don't necessarily mean no bomb material, its just that it's fuel is mixed into the coolant bound to salts. The upside is that they get much hotter, and are subsequently more efficient as a result. Couple that to a super critical CO2 turbine or 2 and you have a very small, extremely powerful zero carbon emissions power source.

By making smaller and easier to build in a factory, especially with the new additive manufacturing, reactors can benefit from the economy of scale. Something we didn't do building the fleet we have now. Every one is essentially custom made, which is a weird choice coming from the country that created the assembly line and the concept of economy of scale.

As for safety, new designs are eliminating the risk of meltdown with TRISO fuel and passive emergency cooling features. These aren't your grandpa's reactors.

It would be nice to close the fuel loop here in the US, but Uranium is just that cheap to pull out of the ground. It's about 4 times the cost to reprocess, but that can be a boon by just keeping it around. It means we have a known and easily accessable source of fuel that we know how to deal with just in case the uranium supply chain gets disrupted.