Abandoning nuclear energy is a widely accepted move by the majority of the population and across political parties. If anything the people wanting to keep nuclear energy, are in a minority. A minority that is not willing to risk actually advocating for nuclear energy.
And I bet until last week the German "consumer" loved diesel powered cars (and the tax benefits) and ignored the down sides of targeting CO2 vs NOX
The phase out of nuclear power isn't the result of a coalition trying to appease a radical fringe component. It's broadly reflective of public will in Germany.
http://www.world-nuclear.org/info/Country-Profiles/Countries...
Even if it were a reason, reversing again on this topic and not abandoning nuclear power would have no impact on prices by itself. New nuclear plants would have to be built which would take decades, even if you could find locations where such a plant would be tolerated.
Pr also gives to much power fringe party's eg Germany totally abandoning nukes to keep the 1 or 2 greens onside to prop up Angela's government.