While Bitcoin ETFs offer several advantages for investors, they come with notable limitations:
You are comparing the advantages of BTC with BTC ETFs which is not a good comparison because, in every aspect of life, BTC has more benefits than BTC ETFs have. Because BTC provides us the features of decentralization, anonymity, and security, and we get to experience the real features of BTC for example we set up wallets by ourselves, we make accounts on exchanges by ourselves, and we are the real owners of our assets all the time. We are the ones responsible for our assets.
But those who are into BTC ETFs can't enjoy these features because ETFs are centralized and not under the control of buyers, we are just giving our money to Fidelity and other ETF trading platforms and not even buying the real BTC. In short, I would like to conclude that we should not think of BTC ETFs as real BTC so we should not hope to experience the same features as well because both are two different things with different purposes nad functionality.
Other than this, the disadvantages that you have mentioned are real ones, but you should talk about the real disadvantages of BTC ETFs only rather than comparing it with the real BTC.