> Yet nowadays it appears Germany essentially outsources nuclear power generation to its neighbors

If German voters had anything to say about other countries' power generation our neighbours would also be shutting down their reactors, or at the very least replacing their worst reactors.

But as it happens German voters have very little say in how other countries run their energy grid. And the people in charge of actually running the German energy grid don't care as much, they are just happily buying and selling energy to keep the grid stable. And in the last 20 years there has only been one year where Germany has imported more electricity than it exported, so it's not like we outsource our grid