If this were true china wouldnt be winding down its nuclear program in favor of solar and hydro

They're not winding down per say, nuclear has stayed steady, renewables simply exploded. Nuclear understandably more prone to schedule delays, but now it's mostly execution delays in months vs regulatory delays in years. They're still on trend with nuclear year plans. Solar simply scales much faster because all the displaced construction worker from real estate slow down can slap panels but not reactors.

They sort of are, nuke is a tiny % of their annual new capacity. Also, nukes don’t have to be cost competitive in a single party state.