Yes that is correct. The US system is most definitely not clearcut, black or white(no pun). It can be interpretive.I more meant that the law should be written where self defence shouldn't be able to work in a situation where you've recklessly, willingly and needlessly invited the threat upon yourself.
But the legal system as it exists in America also means that you would expect a very different outcome if everything remained the same except the colour of the perpetrator's skin.
In this case the local court had a tacit approval for right wing extremism. At the least, even with self-defense acquittal, there should have been some strict punishment for being there, armed and provocative.
Sometimes it works the other way in the States. I'm sure there have been acquittals for an aggrieved victim/family member getting revenge on a scumbag.
A lot of local politics is like that, unfortunately,