Nay, it is easy and comforting to dehumanize and demonize the other. However it does naught but blind you. It is wiser to confront the fact that even the other are people too. The love of a loving parent to their child is not a cruelty regardless of whether the parent is otherwise a "wicked" person or not.
Beware foolish proverbs. It is better to heed the rare true wisdom from a fool than the rare true foolishness from the wise. And better yet to become wise enough to judge for yourself.