buying and selling inconveniences aside, the very real and potentially devastating risk of ETF's would be another fork war. If the community was split and needed to work, like for example the deep state manages to soft-fork some nasty bullshit into the protocol and the plebs have to hardfork out of it, those ETF providers get to pick which bitcoin is the real one for you.

ETF is only for people who don't really understand bitcoin very well.