Bitcoin at the moment is having a high intensive usage when it comes to people using it for trading on a daily basis in order to make money off of it. I'll have to say it is nice having people interested in our little work of art here, but I'd rather not have less people adopt people based on high volatility because the traders would like to make some good money off this on a daily time-frame.
Personally, I'd rather have less liquidity and a more stable price then a very high amount of liquidity and a crazy volatile price that can allow you to lose all of your money (USD) in bitcoin within an hour
It seems like you are confusing something here
Liquidity is no case synonymous with volatility (you shouldn't misinterpret liquid as volatile here). Liquidity basically stands for trading volume (technically, it is not quite so but still pretty close, i.e. high trading volume typically follows high liquidity), so more liquidity actually contributes to less volatility, not the other way round. If a market is said to have high liquidity, it means that there are many buy orders opened at any price so you could quickly sell your coins (i.e. "liquidate" or close your position)
With the amount of trading that occurs, and the amount of more trading that is going to occur with the (maybe?) approval of the ETF it's going to be treated like a stock more and more and there's nothing we can do about others ambitions
That would be quite a surprise if this ETF does get approved after all