Why won’t anyone stop ICE from masking?

Americans do not like masked secret police. There is really no other way to put it. The reasons why are manifold: accountability, trust in law enforcement, and just plain overall vibes. More concretely, not being able to tell who's a cop and who's not is dangerous. An assassin masquerading as law enforcement killed Minnesota legislator Melissa Hortman and her husband last year. How is anyone supposed to tell whether they're being dragged out of their home in their underwear by ICE or by mere amateur thugs?