What would be better is if, when people were being kidnapped by these brownshirts-at-home, the bystanders started beating these kidnappers to a bloody, gelatinous pulp. That way, the street sweepers could come and gently push their mouldering viscera where they belong: the gutter.
Remember: there is no evidence that these people have the force of law behind them. Citizens should not allow others to be kidnapped in broad daylight.