The ACLU came out in defense of the demonstration, did they also enable Nazis? However, this demonstration was never about a statue. The alt-right attendees, given their personal riot gear and weapons, were there for one reason and that was to antagonize and fight.
The police should have confiscated every shield, spear, gun, gas mask, kevlar helmet and piece of body armor they saw. You don't need those things unless you plan to start sh!t.
However, unless Charlottsville has an active and well organized Nazi hunting militia we don't know about, there were a lot of well armed and well equipped protestors looking to start sh!t as well.
There is only one person enabling all of this, and sadly it is the President of the United States.