In Germany they didn't. The plan to exit from nuclear power was enacted by a conservative coalition of CDU/FDP in 2011.
Funnily enough the year before they had dismantled the original exit plan from the year 2000 that was enacted by a coalition of SPD and the Green Party. But Fukushima happened and the old conservative position of "nuclear power good" suddenly became very, very unpopular in Germany.
> Climate change is not a pressing issue, with the rise of renewable we will clean up our act way before it cause serious issues.
That's not the scientific consensus on the issue and could not be further from the truth. We're already experiencing serious consequences from a changing climate. When we don't change now this will escalate to catastrophic consequences.
> it’s the left voice that doesn’t understand the conservatives and the value they bring.
Oh the left likely understands those values pretty well. They just happen to consider the promise of "everything will remain as it was" not so valuable when there is a high price to pay for refusing to change and adapt to a changing world.
> Changing things imply destruction, and the desire to change everything fast has
We would not have to move fast if the mostly conservative governments running Germany in the past 30 years would have used their time to gradually enact sufficient change.
> consequences, thus a return to traditions has a lot of merits.
There really never was a traditional world view or a way to live where everything was okay for everyone. But I'm not surprised you'd say that. Looking backwards and not forward is the core value of conservatism.