Importing will likely be "cheap", because we all agree to collectively pretend that externalities like CO2 emissions or catastrophic pollution from coal plants are not a thing.
Can't see how any of these options are good.
"In 2023, Germany lacks 15 to 20 gigawatt of secured power output”. This comment was from Harald Schwarz, Professor for energy distribution and high voltage technology at the Brandenburg University of Technology. EU Fact check rates this as mostly true.
The claim that germany has sufficient capacity for its energy needs is just wrong.
And all of this still ignores the fact, that there is a highly connected international electricity market, that large scale storage solutions are being prepared, and that the grid is becoming more decentralized.
You are right, the goal is not 100% secured energy supply but we have multiple problems at the same time - energy security and climate change to name just two.