I agree with your remark about loving your enemy as far as actions are concerned. But for me the cognitive basis is the trust in an unrestricted causality. 'I cannot hate him, because he must do what he does. ' That means for me more Spinoza than the prophets.
Listen, if you said to me, 'Adam Shankman is going to direct you in a musical and you have six months to learn how to tap,' I'd practice till I was blue in the face. I would do it because I'm so headstrong and think I can do anything. But just to show up and sing a little ditty, no.