'Discrimination' has been falsely compared to 'unreasonable hostility', but that's exactly what it can bring about.

One could say that if you didn't discriminate against a hostile person or something of that sort, and you treated him the same (equally) with another who's nice, you'd be kind. But that's only a half truth. It leaves out that you would also not treat the nice person like he deserved (nicely). You'd most probably picky a middle road for both or maybe suppress your emotions so as to appear 'neutral'.

That can allow those who truly intend to harm to be treated 'nicely' and those who don't to be suspected or even be harmed for nothing.