the possible strategy of government to impose tax on bitcoin holders

[Methos]

Since btc is a decentralized platform giving no ways to the government to impose tax to the users or holders I have a feeling that government will use the strategy of bitcoin to get tax from all users. By asking too much tax from the exchanges base on the monthly record of how much btc is coming in and out, government will become very strict to this exchanges and the exchanges have no choice but to increase the payment of every transaction of all members. By this the government still successful of doing their motives.

This is a great strategy right? If you can not control the system, control the supporters, users and the holders.
What so you think guys?