just because some people don't pay their taxes when trading bitcoin and cryptocurrencies that doesn't mean bitcoin is affecting the economy of the whole country! these same people would never pay their taxes when they do other things so the economy didn't change because of them.
But the economy will change because of bitcoin not because of people.
Yes because of bitcoin and it will happen only when people stop working and rely on bitcoin only, in that way people will affect the economy because it will break down the man power. This is what i think.
It is mens power which makes bitcoin alive and it rises because we uses it, if people will stop investing into it, then it will not even chance the price, but we use, we invest because we know how much profitable bitcoin is, our economical life is getting better with bitcoin investment and it helps us to have all facilities in life without any discrimination, as everyone is equally able to get benefit from bitcoin, because of which now only few percents of people are remaining poor in my country.