I would assume most diehard bitcoin holders are just fine with no financial system entity touching them. After all, that's what many of them are trying to route

I would assume most diehard bitcoin holders are just fine with no financial system entity touching them. After all, that's what many of them are trying to route around. They want peer-to-peer transactions independent of state actors, and have very little desire to hold BTC in their Fidelity-managed 401K portfolio. Rather it's been the banks that have been clamoring to get a piece of the bitcoin action, not the other way around.