French part of Switzerland is much more left leaning, so I can expect more anti-nuclear sentiment on this side. But the sentiment of nuclear depends purely on which party you vote for, I don't think the language itself has an impact.
But, Germany's decision after Fukushima to close down all nuclear reactors has had a strong impact on the 2017 votation that banned nuclear in Switzerland. So I guess the influence is there.
But, Germany's decision after Fukushima to close down all nuclear reactors has had a strong impact on the 2017 votation that banned nuclear in Switzerland. So I guess the influence is there.