However, there are countries which are focusing more on the possible negative effects of Bitcoin rather than the positive ones, and they give more weight to this than the revenue that they could potentially gain.
until this moment I still don't know what the negative impact of bitcoin itself is, hasn't bitcoin so far provided many advantages for its owners, especially financial freedom,
but if one country bans bitcoin why is there still a tax? what is the tax for?
I really not seeing the negative side of bitcoin and the countries coming against it are doing that for selfish reasons. Bitcoin is talking of financial freedom for everyone both the people and the government. The government can transact fast and monitor theft through blockchain. The corruption in fiat will not be there in blockchain and this is why they don't look at using bitcoin.
Some government are against with it because it is decentralized, meaning, they won't have full control of what's going on in the crypto market. This is why most governments are sticking to their fiat system because it is centralized. But for some governments, they are open to accept the crypto market. They can regulate it by charging taxes on crypto businesses. They may not see the whole picture of the market under their jurisdiction but at least they can get something out of it. But for some, they are totally banning it and not allowing their constituents to deal with crypto. But are they sure that the total ban will make their crypto users not deal with crypto? There are so many ways now how to get around the total ban.