This project is demanding. In a free society we will inevitably encounter ideals we judge to be evil. Some of them will in fact be evil, and will nonetheless appeal to us in ways we ought to resist. The capacity to cope with that—to understand the sheer variety of human ideals, their origins, and how to engage with them critically and sympathetically—is a necessary virtue of citizens in a diverse society. The imperative to cultivate that capacity should be familiar to conservative Christians.
A bit muddy IMO, but it touches on some thoughts that I have had. In short, liberals erroneously think they own not a moral high-ground, but an even purer humanitarian neutralism, that is pretty much the same bullshit when scrutinized.