I think the article presents a few different ways that this technology is concerning: the budget aspect (which seems to be neutrally aligned), the concern for privacy of US Citizen's near the border (also not a left aligned concept), and the regard for human life regardless of immigration status (something that I imagine isn't unique to the far left).
Regardless of one's take on immigration law, or characterization of undocumented immigrants as criminals: the practices of CBP absolutely should be under scrutiny given the unparalleled power they wield.
Regardless of one's take on immigration law, or characterization of undocumented immigrants as criminals: the practices of CBP absolutely should be under scrutiny given the unparalleled power they wield.