If that persuasive appeal that you're making to your Republican uncle means that he doesn't just have to change his view, he's got to change his underlying values, too, that's not going to go very far.
Si en tentant de convaincre votre oncle républicain, vous cherchez non seulement à le faire changer d'avis mais à lui faire renier ses valeurs profondes, vous n'accomplirez rien.