The point is presumably to make an example of a few, and use that to deter future people from posting information about ICE officers, not to send everyone who oppose ICE to the gulags.
When they run out of immigrants to deport, they aren't going to just sell all that crap on ebay. They're going to go looking for more targets.
You're using exactly the kind of dehumanizing rhetoric that the administration is using in order to justify their violence and inhumane treatment of immigrants. You might need to think about that.
Other than the quoted snippet, everything you said may be true. Still, don't dehumanize your opponents.
In fighting them, don't become them.
Second, anybody who is abducting 5 year olds is subhuman.