Dude, those links are totally exaggerating. That only applies to the most radical environmental activists (who I agree are totally dangerous). Your average environmentalist on the other hand is just concerned with getting humans to live prosperously without doing irreparable damage to their environment. The mass industrialization is a young technology, if handled badly, it can do a lot of damage. We know this.
Just cause you believe in a sustainable means of exploiting your environment doesn't mean you're an anti-capitalist commie.