Ok, I'll grant you that our current nuclear reactors leave a lot of long-lived transuranic elements with extremely long half-lives. That's why In most of the enlightened posts up to now (that you probably didn't read or can't understand) people are suggesting newer and better designed reactors. A Thorium based reactor, especially one that is in a liquid fluoride moderator has NO long lived (at least none longer than say 100 years or so) fission products. Most of the ones it DOES produce would be useful in medical research and other scientific endeavors, AND to top it off, the current waste that we have laying around can be BURNT OFF in them. That's right, the leftover mess from 60 years or so of playing with nuclear power can be safely disposed of, making useful power instead.
Your supposition that we'll all be back to beating on rocks at some undetermined point in time is fatalistic at best. I can say that the cornerstone of a modern society is POWER. Before we harnessed chemical energy in a large scale manner that power came from people in the form of slavery. At every juncture in the timeline of humanity when there was a breakthrough in the production and dissemination of power the standard of living for the common man improved dramatically. There are huge swaths of humanity that still do not have access to the limited resources of dinosaur fuel we used predominantly today. You want to raise up the poor unwashed masses around the globe, and feed them better? Provide them with affordable cheap and safe power. Without power, agriculture, sanitation, construction etc etc etc are stifled. With it, clean water is made easy, sewage treatment becomes trivial, medicine, education, clothing, heating, cooling etc etc etc, all become possible. Cheap plentiful power is the ONLY way to advance the cause of the human race. PERIOD. Fossil fuels can not provide it for all of us. "Renewables' like solar and wind can provide trickles of what's needed, but they'll never ever be able to completely meet the needs of an advanced society.
I am disgusted by the droves of mindless nay-sayers who vilify nuclear power without any understanding of what it is they talk about. Endlessly belching out their vitriolic toxic idea that they've parroted from others w/out understanding what it is that they are talking about. You're worried about education in remote places in the world? How about we review what our own children are learning in the schools in our first world countries. When children know more about the pop-top 40 charts than they do the periodic chart of the elements, that's a problem. When modern adults can tell you all about pookie's day on some reality show but can't tell you anything about the history of the human race, that's a problem. I say take away their goddamned 'selfie-sticks' and give them a slide rule, and the know-how to use them!