Blaming the greens is internationally some kind of dumb idea that likes to reduce politics to stereotypes. The real effects will be much more subtle and indirect.
Could still end up with the greens losing votes. Currently it doesn’t look that way at all. (German perspective here.)
I don't know about Germany, but it is my impression that opposition to nuclear power was a common theme among the green movement in general for decades.
Obviously their agenda also included investing in renewables, as well as reducing consumption, but that wasn't going to happen fast enough, either for political or technological reasons.
I have voted for the local Greens several times over the last couple of decades even though I disagreed with and was frustrated with the views they held on nuclear power until recently.
I'm also unfortunately familiar with many of the common and overblown negative stereotypes towards the greens in general.
Insofar as nuclear power could have played a part in reducing our dependency on fossil fuels over the lasts couple of decades, though, I don't think it's unfair to say the greens in many countries did a lot to hinder that.
There are many parts in Europe where the homes are not heated by gas, but by the waste heat from the local power plants, regardless whether they are gas-based, coal-based or nuclear.
Any existing nuclear plant could be converted to also provide heating for the nearby houses, if the infrastructure of plumbing for the transport of hot water would be built.
However, the last part of the heating infrastructure, where the hot water pipes would have to be passed through the house walls and through the walls of all rooms, would be extremely costly in comparison with an electric heater, even if the operating cost would be lower.
So it is very unlikely that such a conversion would ever be done to already existing houses, even if it is possible.
Heat pumps would have much lower installation costs, while still being more efficient than resistive heaters.
If we’re going for the cheapest option, then why not fuck the planet completely and all burn coal?