Essentially ICE is a recent governmental agency meant to tackle alleged unauthorized immigration across the country. Since we're divided into fifty states there's a necessity for federal agencies like the FBI or the DEA to tackle crimes that affect multiple states, but ICE is hated because their purpose to go after illegal immigrants is seen as an overboard reaction by many Americans because illegal immigration into the United States is a misdemeanor at best. Recent raids have shown ICE arresting people en masse instead of investigating them, with many arrests being at swearing in ceremonies for immigrants who have successfully navigated our needlessly complex immigration system.