Re: Portland
As an addendum, you don't even need to look at history.
There are countries "freed" from your hypothetical "tyranny of Government".
One great example is Somalia. By your logic, with the effective hamstringing of the Government and cessation of policing, people have banded together to exist in harmony, free of the oppressive yoke, and are now living idyllic lives where they can get on and advance in peace.
Except that's not what's going on. Roving warlords can do what they want, to who they want. Murder, rape and a whole load of things are unpunishable if they are perpetrated by people with the guns. If you were to voice your righteous indignation about this to them, their complaints procedure is to simply plant a bullet (or knife, or something) into the complainant until they shut up. Permanently.
Advancement doesn't happen, because anything worthwhile is taken by those that can use force.
Life is cheap there. Very cheap.
So, if you want to see where your anti-government, anti-policing strategy points as its end result, look no further than that, as that's exactly the path that happened.