We are all consumers - I eat 3 square meals a day, I burn some amount of fuel to keep myself warm, and I breathe an awfully large amount of air. The author here doesn't seem too concerned with whether this consumption is excessive, though.
Whether or not we start producing more of what we consume, or we go back to a barter economy (which, if you'd pardon the bluntness, is one of the dumbest ideas I've heard recently) doesn't change our level of consumption, so his real problem is with buying crap.
So let's not confuse the two terms.
As for the comment about us being producers, while partially true the ratio between what you produce and what you consume is much more arbitrary than it should be. So we all sort of have to produce, but few do it in sync with the amount they consume (not pointing fingers or saying I do - I definitely don't).