There are people who term themselves 'Eco-modernists' who are almost always pro-nuclear power:

https://en.wikipedia.org/wiki/Ecomodernism

There is also 'environmentalists for nuclear' that includes Patrick Moore, one of the co-founders of Greenpeace and James Lovelock:

https://en.wikipedia.org/wiki/Environmentalists_for_Nuclear

James Hansen, possibly the original driving force behind modern greenhouse gas concerns is also pro-nuclear.

It is definitely not fair to say “treehuggers, every single one of them. There are a lot of environmentalists who are absolutely pro-nuclear. Just like any mass of people, blanket generalizations are almost always just wrong.

We can do better than that here.

Oops, that sentence was ambiguous. I meant every single one of the talking points. Treehuggers is absolutely the right term in the context of this article, though.