The harshness of your grievance (attempted grievance) demonstrates the weakness of your argument.
Long-term "holders" will sell their Bitcoin for other paper called USD and those Bitcoins will be bought by Blackrock. This is the only one reason that BTC holders want ETF. See the price going up and sell.
It's actually the other way around. ETF is the trojan horse, not Bitcoin. Do you really think it's good for Bitcoin that most of its supply is in the hands of big state-loving corporations like Blackrock?