I don’t know how it would actually unfold with etfs but I’m assuming they’d just hold the fork shitcoin with their custodian and have the option to sell off bitcoin. My guess is they would absolutely do this to dump the price and encourage a switch. The actual ETf would probably not be affected volatility wise unless the shitcoin starts dumping - which I don’t think would happen right away because they have an unlimited fiat printer basically …