Comment by JuniperMesos

ICE officials are pretty consistently saying that they do more visible immigration enforcement in places where the local police are forbidden by local or state law from giving information about people they arrest to ICE, compared to places where the local police do this happily. Legally-forbidding local police from cooperating with federal immigration enforcement is a prototypically blue-state policy that red states do not generally do.

The visible disruptive protests against ICE activity are also the sort of thing that you'd expect the sorts of voters that make a blue state blue to do, so when ICE does arrest illegal immigrants in red states, there's much fewer people who are inclined to protest it and therefore less publicity in general.