They represent a no-nonsense reminder that you had better take these symbols seriously and that you risk condemnation -- if not a loss of what remains of your American liberties or of even physical harm -- if you dare challenge any of this.
Anarchists are anarchists are anarchists. They hate government regardless who is running it. The Democrats created a monster in ANTIFA and BLM and the only way they know how to stop this is to fence off the place and have the military guard it.
“... these military fortifications provide a strong visual reminder of just who is in charge”
Who exactly ordered them?
You don’t know.