[trcollinson]

Is shoplifting ethical and catching shoplifters unethical? I realize there are circumstances that bring people to the point where they feel that shoplifting is the only answer to their problem, but shoplifting is still illegal and for good reason.

Now, if it turns out that their system targets specific races of people, or only catches a certain "class" of people, that is unethical. But if it is an inventory protection system, there is nothing unethical about that. You may say "but some users may use it unethically to only arrest certain people." Yes, that might be but you can't assume everyone is going to use every piece of software ethically, and that doesn't make the software unethical.

I think you need to examine your ideas about ethics, morality, and the law. Collectively, as a society, we think theft is bad. Keep that in mind.