But they do generate (human-)life-threatening nuclear wastes that last 100k years. That dwarfs even the longest human civilization like Egypt[0]. 100k ago, humankind was barely appearing. Plastic in comparison takes around 450 years to be disaggregated through exo-human processes[1].
How to deal properly with these wastes is still a vigorous debate generator[2]. The thing is, with our current theoretical knowledge and practical expertise, we don’t have solutions that scale at the industrial level at which nuclear wastes are produced. Not in a way that we can say "and thus mankind will be completely free of dealing with this issue in the next 100k year".
