I have no doubt that bitcoin ETF will sooner or later be approved and, I suspect, it will happen in the near future. But why do we think it would affect the entire cryptocurrency market? Who did say that the regulators would stop the pressure on the rest of the crypto?
If you expect the market to become freer, all legal barriers will fall, developers will no longer live under the threat of criminal prosecution, you are mistaken.
The victory of Grayscale touched Bitcoin and only Bitcoin. On the contrary, administrative pressure will increase on all other market segments. The SEC is going to take control of all cryptocurrency projects.