@layman,
This is a simplistic caricature of what supporters of sanctuary cities are actually saying. You are putting up a strawman so you can throw mud at it. I see what you are doing. I don't think you are fooling anyone. And, it made me laugh.
There is an real issue, that has some depth, around the impact of immigration enforcement with local police. Many law enforcement officials point out that it is important for local police officers to have the trust and cooperation of the local communities they serve, and that federal immigration enforcement can erode that trust.
There is an issue here that has some nuance. But your interest is to throw up a target for mud slinging about how stupid liberals hate police. Correct me if I am wrong.
Anyone who has poked their head out of the partisan bubble even a little bit understands issues like this on both sides.
But you turn a real issue into a simplistic slogan, not even mentioning that this is an issue with local law enforcement working withing local communities.
Is this anything more than a target to sling mud at? If you are really interested in understand the issue, there are plenty of American police chiefs who can explain the issue far better than I. You could go find them if you were at all interested.