The reality is that they're wearing masks so that they can act with impunity; they behave as though they're above the law because they know that the people they're working for will never try to hold them accountable, and as long as they're anonymous the public can't hold them accountable either. This means they can do whatever they want to whoever they want and nothing will come of it, so if they want to harass and assault minorities they can do so freely.
I wonder if experts will emerge to call this inciting "stochastic terrorism" [2]. I won't be holding my breath.
[1] https://en.wikipedia.org/wiki/United_States_immigration_stat...
[2] https://en.wikipedia.org/wiki/Stochastic_terrorism
Shipping someone to a concentration camp in El Salvador despite the fact that a federal judge ordered that they not be sent to El Salvador, insisting without evidence that they were a member of a gang, saying anyone who wants them to be able to defend themselves in court is pro-gang-violence, and then insisting that there's nothing you can do to get them back so everyone should stop complaining and move in... that's some fascist secret police shit.