Gore never critiques the system causing the global ecological crisis. At one point, he even mourns the negative impact of global warming on U.S. oil pipelines. Oh, the horror! What it all comes down to, for Gore and the Democrats, is that we need to shift away from reliance on fossil fuels and tweak existing consumption patterns.
Even there, Gore and Clinton did nothing to improve fuel efficiency in the U.S. -- a topic which Gore talks about in the movie without any hint that he'd once actually been in a position to do something about it. The question Gore poses is who can best manage the relatively minor solutions he recommends, the Democrats or Republicans? For Gore, it's sort of "trust US, not THEM, to deal with this situation because they are liars and we're not."