A conservative probably would counter with saying that these cases show the lack of civilized values while the libertarian (and Objectivist) might point to the lack of understanding of individual rights. An Objectivist might also go a bit deeper and say these are examples of wrong philosophical premises.
The problem, as I see it, is that all of these answers have some merit to them. Naturally I lean toward the Objectivist explanation. Nonetheless I think being able to understand the framework of these other views can help in trying to communicate and influencing the other person. I’d say you can acknowledge their concerns then gently steer the other person into considering that their conclusion doesn’t dig deeply enough, that the actions and their consequences are rooted in more fundamental ideas about the nature of rights and civilization which can determine whether there is oppression.