Even if every bit of regulation was scrapped and uranium was free, there are still significant costs to steam turbine based thermal plants plus the reactor itself that can't be hand waved away. As PV costs and now grid-scale storage keep dropping rapidly, the economics of a nuclear plant that takes 5-10 years to get running at full capacity (in the very optimistic case) and even longer to break even look increasingly questionable.

PV solar + batteries is a dead simple, solid state design that's easily scalable without huge up front capital requirements. We're not at the point yet where nuclear doesn't pencil out anywhere, but with current trends it's getting closer by the year.

I wish we built more nuclear 20-30 years ago when the competition was coal and gas but unfortunately we didn't and now the equation has changed. Shutting down existing reactors that are still viable is a bad move to be clear, but new plants are becoming increasingly hard to justify economically.