Sure... and 3 guys in China control 50%+ of the Bitcoin network, and ETH mining will eventually centralize as well. What's your point? I'd rather have Janet Yellen controlling my currency than Jihan Wu/Barry Silbert/Brian Armstrong.
It's massively parallel, with smaller hash-producers/stakers having nearly the same profitability as large ones, and nearly no minimum investment required to enter.
This is diametrically opposed to any central banking scheme, which is extremely hierarchical, with the representatives of regional banks sitting alongside high-ranking political appointees to create monetary policy and make decisions as significant as buying a trillion dollars worth of privately owned assets from large privately owned financial institutions.
The current centralized monetary scheme is the reason 42% of corporate profits since 1972 have been earned by the financial sector.