I'm not a big fan of ICE but this article is ridiculous fear mongering. What ICE is paying for is implementations of lawful wiretaps after obtaining a warrant from a court just as every other US local, state and federal law enforcement agency does.
I see the bigger issue being whether ICE's law enforcement mission is ethical. Once you accept that it is, which I don't necessarily do, the use of lawful wiretaps to achieve it seems to me to be for most a non-issue.
A public employee that does the right thing at great personal cost is a hero, but our elected officials should never put them in that position in the first place. That's where the bulk of the anger belongs--at a legislature that has abdicated way too much of its responsibility and at an elected executive that has taken that delegated authority and used it for things we find unethical. Sure we can save some disappointment and anger for the foot-soldiers but not at the cost of losing site of where most of the blame belongs.
We have protests about companies providing software to ICE, why don't we have any protests about companies providing software to the White House and Congress?