Bitcoin cannot cause any economic damage.If I sell bitcoin, respectively, there is a buyer who can also be from my country.That is, the money remains in the country and not go abroad.
Similarly, if a person in your country buys bitcoin or they lose during trading, their money will be transferred to foreign countries, and you should remember that the amount that fluctuates in the crypto world every day is not a small number, so the damage in a country's economy is something that will happen. However, as is the case you say, that damage can still be offset when many people can make money through bitcoin as you or many others, summing up everything, the damage will be negligible, sometimes it can also generate good income for many people, that's why many people are continuing to participate in bitcoin right away when it doesn't have too many practical uses