There are no strawman arguments here. San Francisco has a sanctuary city policy, blocking immigration attempts to deport people. Deporting people is not a horrible deplorable thing, as you're making it out to be. It's a fact of border enforcement.

You can make any number of arguments about families and suffering, but the fact of the matter is that people chose to immigrate illegally and raise families when they knew what the consequences could be, and now they're trying to weasel out of the consequences.