> rather innocuous comment

It may appear innocuous yet it normalizes ICE's actions as mere "immigration enforcement". Their actions are far more and far worse than that, as you note:

> ICE's current tactics seem overly aggressive to me and, yes, seem to be used politically.

It is not an issue of immigration laws being enforced, it is an issue of rights being infringed. The "overly aggressive" tactics being "used politically" is exactly the problem.