No, that is not what they are trying to say. I think you should go back and read what they are saying. Because, apart from you and gerryh, I've never heard any of the so-called skeptcis say anything close to that. It's usually a mixture of ad hominems, references to some vague conspiracy theories and demands that I "prove" it.
OK, you're right. They are emotionally driven. They leap to the conclusion that global warming is BS, then look for facts or arguments to back up that emotional conclusion.
But of course the same is true of most global warming believers. They are of the "humans are bad, mmm-kay?" mindset, they don't understand the science, and they say stupid sh*t like "97% of climate scientists." Science ain't a democracy. There's one right answer and a whole bunch of wrong ones. And if one scientist has the right answer, and every other scientist in the world has the wrong answer, the right answer is no less right.
Indeed the system is complex--not to mention chaotic. But is that complexity reducible? I'd say it is. That's pretty much the entire point of working science, really. Developing models that reduce complexity yet maintain predictive power. We suspect that aspirin works, even though we can't come even close to modelling the human body, or the galaxy within which it interacts.
My evidence was for that one experiment. The evidence for the entire case is orders of magnitude larger and can't be grasped by any one person, since it covers so many scientific disiplines. At some point, you have to take someone's word for it. I happen to be proficient at radiation physics and thermodynamics, and on that level, the theory makes sense to me, so I accept it.
Makes sense to me, too. It just don't account for enough variables.
It is my conclusion that the jury is still out on global warming.
Now, here's my compromise. There are many tried-and-true pollution control measures that also reduce CO2 emissions. Why don't we go big on that, since they have immediate, tangible benefits, as well as the extra, added "If AGW theory proves out to be correct, we're also doing something about that."
Sound reasonable?