It is one of the political parties in the outgoing German government that was against nuclear power stations. When they made that decision, we lived in a different time. Do I agree with their decision, no. But it was their choice, their right to decide.
The fact is that nuclear power stations are not as “low carbon” as the industry and its political supporters like to trumpet. And nuclear power stations are not very good at ramping up output quickly so are not a good match for use alongside wind turbines.
Nuclear weapons are rather different to nuclear power stations. And just for the record, our (the worlds) current nuclear power stations and nuclear weapons are based on nuclear fission. There are other nuclear technologies.
Rather ironically, the argument could be made that nuclear weapons are safer (until deliberately fired) than nuclear power stations.
The new German government will not include any members of the far right party if the other political parties honour their word.
If we applied your principals to the U.K. and France, neither country should be allowed to retain nuclear weapons. In both countries there are members of far right political parties that have seats in the respective national parliaments.
And in the U.S.A. we have a far right political party in government!