China seriously invested in it heavily, met a modicum of success in building a wave of nuclear plants, but near the middle of the full plan decided to halt any new construction. I think even with low regulation, and a focused investment it was turning out more expensive than the alternatives.

Personally, I think looking at the data so far, we should just stop investing in fission plants, continue research of fusion plants, but put a practical focus on building renewables to meet climate targets to get the most reduction for the buck.