They have a direct impact, because they go against their mass surveillance plans.  However, even if their primary concern is taxation, what measures can they take against decentralized mixers like Monero?  Shutting them down is unfeasible, and there's always the option of exchanging Bitcoin for Monero decentralized.  Essentially, they are inadvertently driving us towards adopting unstoppable methods to achieve the same objectives, perhaps even more efficiently than before.

Would that line of thinking make sense from a governmental perspective?