Clearly those people haven't seen the latest Jack Reacher movie for proper instructions on beating up on bad guys.

It didn't go well, but they tried. It doesn't always go well for the cops, either.

The news is full of stories of people dying while waiting for law enforcement to respond. I will not disparage a person for trying, and failing to get the Hollywood ending.

The right to free speech does not guarantee that good things are said. The right to defence does not guarantee success, it just means you get to try.