Do you think if BTC had a stable price which could only be altered by $0.01-0.10 it would still be as popular and as used?
I do not think that bitcoin will be more stable, because it is not regulated by anyone and depends only on user activity.
Are you suppose to say that it is not going to become popular if it has a stable price? This is why bitcoin is being liked by a lot of investors and other people that are pushing decentralization that wants to avoid taxes from the governments and wanting to have an anonymous transaction. And the price is unstable which is giving more chances to make profit.