This allowed governments around the world to coordinate their efforts to wipe out the movement. Anarchists bore the brunt of these initiatives, which was the full intention of legislators of the time. Given the continuing evolution of the national security state, I wouldn't be surprised if they still are. This law also made it a felony to join any organization that taught or advocated anarchist doctrine. 240.15 Criminal anarchy.
Criminal anarchy is a class E felony.
This law made it a felony to organize or knowingly become a member of any assemblage of people who taught or even advocated syndicalism. Anarchists, in their eschewing of party politics and organizations, were exempted from this clemency. Consequently, this policy snuffed out the indigenous anarchist movement in the United States, as prominent anarchists were either jailed, deported or executed. This is how the United States is able to deal on such cozy terms with fascists all over the world, and could look the other way when China butchered its own pro-democracy movement. All of these agencies are comfortable with the idea of a powerful elite, privilege for some, masters and servants.