Why do they feel the need to bring shields and a smoke bomb?
What were they prepared to happened? What was their intent of going there?
These are all questioned that will be answered in a court of law and a criminal investigation.
If you actually read their website you would know. They believe the police/government are failing to keep the communists it check. They have gone to and participated in multiple parades and protests, they bring the riot gear to help defend themselves against the apparently highly likely of unchecked rioting breaking out at the events they go to counter-protest. They claim their goal is the defense of life, maybe It's only the life they deem worthy of defense but that's still their right.
Assuming these guys are who they say they are, they wouldn't have any justification to exist with the goals they claim to have if the government/police didn't let cities be burnt to the ground and looted for months on end. There's a reason these groups are called reactionary.
Anyway, you've done a perfect job of showing off, unironically, the progression of thought that we are all pretty sure the establishment is hoping for. Linking anyone who stands up for their rights and the rights of others to Neo-Nazi terror organizations, thus making it acceptable to hate them and unperson them. You are proving our point for us.