I live in a very red state (North Idaho). They don't need to send ICE here. The sheriffs are all cooperating and lending county facilities to hold immigrants. It is safe to say the entire sheriffs department is basically a branch of ICE at this point. They have been targeting I-90 and US-95 heavily and running plates on every car along with a helicopter that basically just goes back and forth all day.
There is very little immigrant presence here (illegal or otherwise) but they have been catching work crews at random (usually under the premise of suspicious vehicle/behavior).
Spokane has been having CBP and ICE raids as well. Quite a few make the local news. Just doesn't get the attention like the larger cities do. Quite a bit of roundups going on out by Yakima and Tri-Cities, WA too. Which is part of why they are using county jails to hold people.
If it was ever true, it hasn't been true for a long time.
There used to be (and probably still is) a saying in the US military that goes something like "Folks who can't hack it in the military wash out and become cops.".
The military is not at all configured to be an effective long-term occupying force, but its personnel are trained to be soldiers [0] and peacekeepers. (While I'm absolutely certain that one can find examples of psychos that should have been detected and discharged earlier, that's true of any sufficiently-large organization. Finding every malicious person is a task that's next to impossible.)
Anyway, in a high-pressure, chaotic situation, I'd rather come up on a random member of the US military [1] than a random cop any day of the week.
[0] Yes, this does mean that they damage, destroy, injure, and kill when required.
[1] Whether active duty, reservist, or honorably discharged.