The reason we don't have reactors that recycle nuclear wastes is because ecologists have attacked the next-gen model with a bazooka.
https://en.wikipedia.org/wiki/Superph%C3%A9nix#Rocket_attack
This is why we can't have nice things, the ecologists have prevented the solutions from the issues that legitimate their political existence.
In germany and in the U.S the shutdown of nuclear has been a blatant lobby too.
No, the reason we don't have reactors that recycle nuclear wastes is because they are economically ludicrous. Uranium is cheap, enrichment has become cheap, so there's no incentive to reprocess for plutonium the use of which would increase the cost of fueling a reactor.