V: People should not be afraid of their governments. Governments should be afraid of their people.
And you actually think a handful of nitwits with loaded guns puts fear into the hearts of the people who control the most powerful military in the world?
These guys are asshats, no doubt about that. But they have an active motivation to make sure nothing bad happens. A big scene would probably just make a powerful statement for their sworn enemies.
If they don't, they should have no issues letting the 'nitwits' protest within the confines of the law.
Laws of course can be changed, and the District of Columbia is subject to the control of the United States Congress.