If they’d arrested more than one of them, they’d have been able to identify their political ideology and perhaps even who was paying them. [One of the rioters is wearing a nearly $800.00 jacket. Either he’s a well off Berkeley student, or Soros pays very generously.]
As it is, they’re claiming Milo staged the protests (using conservatives as operatives) for promotional purposes. That narrative only stands a chance if as few as possible of the rioters have been positively IDed.
A lot of these guys are from upper middle class backgrounds. The one guy that was allegedly identified, his father is a successful Hollywood and TV screenwriter.