Bitcoin ETF is a confirmation for approval from this world. People think that though via ETF market will grow again, but I don't think so. Once approved, everything will be managed based on some provisions from the ETF which will limit Bitcoin's growth.
the market is small but it is not that small! it is still big enough for any ETF or anything like that to not matter. we are no longer in early 2010-2011 where there weren't that many exchanges and volumes were too small. right now an ETF with all its size will only be a small percentage of the total market volume. not to mention that they don't directly link to the actual market, instead they take the price from it. so they can't change anything
How do you actually know that the market is really that big?
What metric are you using exactly? If you are using something like market cap or even trading volumes, these can be misguiding. Market cap is heavily misguiding on its own (even deceiving), while trading volumes are most likely fake (at least, a substantial part of them). Indeed, the market is not like it was in 2010-2011 as back in the day there had been no market at all, strictly speaking, but that alone doesn't automatically make the current market suitable for ETF's
As far as I understand it, many ETF's actually own the underlying (say, gold bullion), so it is not like they can't change anything. Besides, paper markets (like cash-settled futures) may also affect spot markets