Pitting nuclear against coal is fighting a straw man. The alternative is renewables. With a tiny fraction of the negative side-effects either nuclear or of fossil energy brings.
That said, no reason why the original deal can't be extended to renewables, seems perfectly fair. It's to everyone's benefit that all methods of power generation be held accountable for all their costs.
It's not really that great.
Why? Built geographically decoupled production, look at past weather data and pick how many 9's up-time you want.
Then use storage and smart consumers to lower the requirements.
For national emergencies keep a fossil reserve or whatever, with that kind of usage power 2 gas should not even matter.
No, it is not the green party who is at fault. This falls fully on the shoulders CDU who was in power for 16 years.