Retailers still have more than institutions, so all as gud, imo, we shouldn't sway toward the doomsday scenarios in that instance.
Which is true, if we're concerned about decentralization of bitcoin we should be participating to keep it by doing self custody, that's the only way.
If we just complaint without doing any action, then we're lying to ourselves. We're part of the retailer and the one that keep decentralization of holders.
The ETF is here to bring the inflow, DCA and self custody is the way to counter the centralization that ETF brought.