Which newer plants? I'm still paying for the cost over-runs at Vogtle here in Georgia which is a 'modern' plant. Granted, Westinghouse went bankrupt but Wind/Solar builds don't have the same risks concentrated in a single manufacturer.

Sure, we have some research reactors which use (the now meme'd by armchair scientists) thorium reactors but we need power today, not in 2035. Why pour billions into unproven technology when we have proven technology that gets cheaper every year. Additionally, Lazard just put out their LCOE report for 2019 and for the first time new-build unsubsidzed wind can be cheaper than the marginal costs of a fully paid-off nuclear plant.