No. The ICE agents are presumably assuming that their victims are illegal immigrants, if we assume a best-case scenario where they aren't intentionally abusing

No. The ICE agents are presumably assuming that their victims are illegal immigrants, if we assume a best-case scenario where they aren't intentionally abusing their authority to attack random targets of their attention or racism. But by legal definition, their targets are all innocent of crimes. Without due process, they are not convicted criminals. Even if all this were true, your accusation would be false. Some came here legally, but in the eyes of the current administration violated the rules of their immigration while here.