I don't know why government are never tired of this kind of attack on bitcoin, why is it that they never wish everyone of us have privacy at all, this is unkind of them because they don't want to spare any one that want to get involved into this,
The American government wanted to show that they were in full control, thus creating issues with these decentralized services to the possible extent of staging fraud to cease the operation of any service that covered the history of transactions. They often did this kind of stunt with the reason of AML and anti-terrorism acts. I do not think they attack Bitcoin since they know that they can milk any Bitcoin users or company residing in their country through tax, the reason why they do everything to track Bitcoin transactions.
The reason is clear. The American government hates privacy, especially with regard to financial transactions. This is against the government’s policy, which wants complete control. The concept of privacy and decentralization is completely against governments.
The US government is currently attacking decentralized wallets, which appear to be subject to US regulations by force, and the Wasabi wallet has been blocking US users from accessing its services a few days ago.
Well with privacy, they won't know how much their citizen are gaining thus it will hinder their taxation and they believe it cause them losses.