There are roughly 13 million coins in circulation, with the maximum amount being 21 million. This means over 50% of all coins in being, are in control of a small minority consisting of maybe 0.01% of the worlds population.
the bitcoin is divisible, this shouldn't be a problem, you don't need to own a whole bitcoin in future, when the price will skyrocket
His point is money=power and in this case too much power in the hands of too few people