Anyone who doesn't also include nuclear energy as part of the assortment of tools to fight human-driven climate change cannot be taken seriously on the issue.
Well that's just a stupid statement.
Is it? Germany had to turn to coal after deciding to shut down their nuclear power plants, because renewables alone couldn't adequately meet their energy demands.
This was because of three factors: the "nuclear phase out" was a badly unchoreographed U-turn rather than a well-thought-out move, the collapse of the European Cap and trade mechanism leading to coal being effectively aubsidised compared to its rivals and nativist demands to use "German coal" rather than imported gas.
If you want to rely on nuclear for a grid with renewables, the big baseload plants that Germany are killing are dead anyway. If something can't be quickly mobilised it's effectively useless in a flexible grid.