Crypto just started.  It is less than 1% of the worlds market. We will see soon the mayor players with serious money (like this is a small amount lol) step in.
After 10 or who knows how many years earnings will be in smaller percentages as we will expanding more and more in worlds market.
And I hope that it will replace the fiat currencies. Or it would be interesting to see fiats join to crypto with their own code.