You have to understand, no government in its right mind can allow bitcoin to exist as a part of its economy without regulation. it would literally ruin the economy. governments depend on the fact that they can control how much of the value it generated, makes it outside of the borders. we wouldnt want people to get paid, cross the border and go shop for everything. sales tax is a really big stream of revenue for a government. bitcoin, with its lack of borders, facilitates this process, which is called capital flight.
if you had a government, you would say fuck a bitcoin. trust me