Okay, Bitcoin ETFs were huge, no doubt. They brought in a ton of institutional money, and the price definitely reacted. But here’s something I’ve been thinking about: are they actually good for Bitcoin’s decentralization in the long run?

When big players like BlackRock hold massive amounts of BTC for their ETFs, doesn't that concentrate power? It feels like we're just trading one form of centralization (fiat banks) for another (institutional custody of BTC). Or am I overthinking this, and the wider adoption benefits totally outweigh this concern? What's your take? Does mainstream access come at a cost to the core Bitcoin ethos?
https://example.com/etf-custody-debate