Well, if we extract the energy from the spicy rocks today through fission then on a time scale of over hundreds of millennia you actually end-up with less radioactivity on earth! (After 300 000 years to be accurate, and the figure I have is based on low enriched uranium based fuel as typically used in a light water reactor).

You maybe mixing up danger and risk, those are two different concepts. Nuclear waste is dangerous, but it doesn’t have to be risky. Consider this: where do we have the most unknown (risk): long-term geological storage of nuclear waste, or the consequences of climate change and our ability to adapt?

I really wish I could share the educational resources that I have with you, unfortunately it’s all in French…