A values-based identity appears to be superior, but it is actually the product of an identity crisis. For example, Jewish assimilation dropped the 'peoplehood' aspect, leaving behind a values-based identity. When liberal Jews express their identity, it is values-based, built around "Tikkun Olam", or "Social Justice". That opens up a hole for someone like Peter Beinart to crawl in with a crisis of Liberal Zionism, a conflict between values-based identity and Jewish survival.