this is a subject that the USA gov and China even agree on. It is such a shame westerners have such a negative reaction to nuclear energy. but it isn't as profitable as fossil fuels/selling new electric cars so :meow-shining:
https://www.energy.gov/ne/articles/advantages-and-challenges-nuclear-energy
https://www.globaltimes.cn/page/202106/1227103.shtml
Depends on your reactor once again. Heavy water reactors don't require any enrichment at any point. If anything it would take more processing than the uranium going in