“None of [the solutions presented by mainstream groups] address the power structures, None of them address corporations. None of them address a lack of democracyÃ¢â‚¬Â¦. The environmental groups are not questioning this larger mentality thatÃ¢â‚¬â„¢s killing the planet.”
Some like the tepid liberals of the anti-war movement, who also favor going slowly (very slowly indeed) and not ever questioning or upsetting the status quo or economic structure that led to the problems in the first place. That might upset their donor base and thus threaten their power base.