It may, but that doesn't change the big picture. Whether there are 200 million rich individuals causing most of the damage to the planet out of a population of 7000 million or 300 million out of a population of 10000 million (or whatever the specifics are), the wealthy are causing disproportionately more damage than everyone else. Comapling because there are a few thousand billion more poor people when a hundred million rich people cause just as much if not more damage is not a population problem. If the damage was evenly distributed and pretty much independent of income then it would be a population problem, but until then it's a resource consumption problem caused by a relatively small portion of the world population.