Do you not understand that the tools the government uses to control non-citizens are turned inward all the time? Military tech is tech, surveillance tech is tech. They are not chiming in on 'immigration policies', they are chiming in on technology used to actually implement those policies. If all you care about is not having tracking pixels in your personal consumer browser you're going to miss the most dangerous encroachments on your freedom.
>Military tech is tech
I want the US military to have the best guns, best tanks, best nukes, best drones, best planes, best satellites, best boats. And spoilers: they do. Yet somehow that has not encroached on our lives. Adding “best surveillance of our foreign borders” does not for a dictatorship make.
>They are not chiming in on ‘immigration policies’
I’m not sure how else you can read this statement in the concluding paragraph: “Well, one reason may be that treating problems at the border as humanitarian crises.” Agree or disagree, this is pure domestic politics.