Of course it's very difficult to make the price of Bitcoin look stable on the market, one reason why the price of Bitcoin will never be stable is because the price of bitcoin is not controlled by anyone, so prices on the market will be very free, and prices change at any time because influence by traders.
Yes, it is worth agreeing with this opinion. Decentralized cryptocurrency, which is not regulated by anyone in terms of price, can never be stable in its price. It will always be subject to very high price volatility, and the higher the price of a cryptocurrency, the greater the volatility it will have.
Volatility does not necessarily eliminate the potential for monopoly in the future, bitcoin will never be stable if Whales forms a partnership that is able to move the market at will, they will continue to add and add their bitcon nominal, there is no potential standard until now in my opinion solution to the problem.