We do not live in Hollywood, and one's happiness cannot be the sole barometer for what's good in the world. Being hyper-focused on happiness is the same as being involved in Jewish life only because it provides meaning. Judaism is more about our obligations to God, family, and nation than anything else. This is why so many have a visceral reaction to intermarriage. Our priorities need to be building and raising healthy Jewish families, and there's no way to do that when marrying out. The ritual of brit milah is about national identity and cannot be shrugged off.