People aren't resisting arrest. When you see people bloodied, beaten, permanently blinded by point blank non lethal weapons, or just shot in the face, that's because ICE / cops / CBP are doing it for their own personal enjoyment, and making sure the minimal amount of setup is there so they can claim they did nothing wrong. Cops finding excuses to kick the shit out of people who bother them is as old as policing itself. There's tens of thousands of accounts per year of this sort of thing, extreme examples being like Derek Chauvin, or more old school look up Abner Louima, but tons of garden variety cruelty every day, everywhere, done in the name of "fuck that asshole we're gonna fuck him up". The ICE version, run by fascist maniacs, is selecting for only the cruelest and most ideologically driven employees, but ICE had this reputation even before the current administration. It's just they have 80 billion dollars now to make it happen.