A) This is implied to mean people of working age, so under 20 doesn't count.
B) The 0.01% is not all billionaires, but they are all extremely high-net-worth individuals. These are people that are not only set for life, but with proper money management and tax planning, could carry on for generations without having to do a lick of work.
There are over 500 billionaires. My point being that OP's point comes off as an emotional argument as opposed to a data-based one.
Edit: I now understand the OP meant "100-millionairs". Even so, the math is still off. As of 2015 there were ~5000 100-millionaires and billionaires in the US[1]. That's 0.0015% of the population.
Slow down for a second. You're misreading the language.
By "100 millionaires" he means hundred-millionaires, that is, people who have one hundred million dollars or more. By "100 millionaires and billionaires", "hundred-millionaires as well as billionaires".
B) The 0.01% is not all billionaires, but they are all extremely high-net-worth individuals. These are people that are not only set for life, but with proper money management and tax planning, could carry on for generations without having to do a lick of work.