Well, there are <20k active authors here.
If we add in curators, as if they were equal in the creative process, then <60k, I think that takes a few decimals off your math.
Though, it is not central to the facts.
If folks sell, the supply on the market increases, and prices go down.
Some people really need the money.
Witnesses need to pay for servers.
Venezuelans are hungry.
If, at some point, these things don't balance out with the price at 5usd, or so, then the price will never be 5usd, again.
Forgive me if I left scavengers out of my equation.
If you are here solely for the profits, you may be playing the wrong game.