WTF is happening in Seattle?

https://www.foxnews.com/us/seattle-p...sses-extortion

What are the legal ramifications for citizens taking action against a group such as this when the government won't? Can you use deadly force on someone detaining you at a checkpoint on your way to or from your home? Especially if they are armed as shown in some of these pictures?

Are these anarchist trying to poke the bear and start a new civil war? One of which they will be severely outgunned in.