> This has always been true and there has never really been perfect justice.

You raise the standard for justice to perfection. There also has never been perfect corruption and anarchy.

> Ultimately, power and violence have always superseded the law.

That's like saying night has always superceded day. Everyone recognizes that recent years have been very unusual or unique in US history. That means for the great bulk of US history, it was different. Why doesn't 99% of US history outweigh the 1% (picking numbers very loosely) in determining what is somehow inevitable to you.

In fact, law is universal among human cultures. We are naturally social and live in groups with rules. Those that violate rules are generally outcasts.

But the most fundamental and significant error is attributing the current situation to some unavoidable system instead of the actions of people, especially those that stand aside and allow these things to happen. Many of them stand aside because they are told - probably messaging ultimately from the lawbreakers - that they are powerless and should despair.