I see the government as greedy. There are several ways to tax citizens. Direct and indirect tax exist in every country. Owners of cryptocurrency may not pay direct tax on their cryptocurrency, but cannot avoid paying indirect tax. Again, it is a small fraction of the population that are into cryptocurrency. So the agitations by government from my standpoint is unwarranted.
Governments are now realizing the need of Bitcoin and that is why recently we have seen the act of Germany and recognized the Bitcoin for the first time ever in their history. This need is feeling to other countries as well because they are watching and observing the economies of other countries which are using Bitcoin. They also need this and soon the whole world will demand for it.
I don't think that imposing taxes on bitcoin users would be an easy job to do since bitcoin transactions is anonymous so how can governments trace the people who are behind these transaction, let alone tax them. But again I agree with you as the number of bitcoin users in my country doesn't take up much of the population and the people here have to pay like hundreds kinds of tax and we have no way to avoid it. Moreover, there are doubts about where these taxes will actually end up because we heard on the grapevine that most of them usually goes into politicians' private use. So I don't support imposing taxes on bitcoin.