A traditional name for the Jewish people is the Children of Israel. This has traditionally been taken literally to signify that the Jews are the direct descendants of Abraham, Isaac, and Jacob (Israel). Most Jewish Humanists acknowledge these figures to be mythical characters of ancient Israelite folklore; stories the Israelites told to account for the creation of their nation and their bonds to one another. But the symbol of the Jews as a large family is useful for the purposes of determining who is a Jew and what it means to belong to the Jewish people in Humanistic Judaism.
It must first be recognized that holding a familial understanding of the Jewish people should necessarily open up Jewish identity beyond the strictures of halakhic definitions. Family is more than bloodlines and legal definitions, and it includes the children of fathers as well as mothers. Anyone born of a Jewish parent should be considered fully Jewish, regardless of which parent it is. Adopted children should be considered as much a part of the Jewish family as children born to Jewish parents, without the need for pointless conversion ceremonies. The same is true for gentiles who marry Jewish spouses, assuming that they have no objections to becoming a member of the tribe. Any process which joins a gentile to a Jewish family should be enough to confer Jewish identity on that person if they wish to assume it. Similarly, any gentile who wishes to join the Jewish community with no previous ties to Judaism or Jewish people should be welcomed with as few barriers as possible. Jewish identity is not conferred through rituals and ceremonies, although they can be useful for public recognition, but rather through participation in the life of the community. Jewish identity is a communal, familial identity, and as such it is conferred through membership in the Jewish family, whether that be a literal family or the Jewish community.
By using such a broad definition of Jewish identity, Humanistic Jews affirm their commitment to the principle of inclusivity. Including as many people as possible who would otherwise be marginalized in the Jewish community is the best possible way to help the Jewish people thrive as a vibrant religious and ethnic group. It also allows for greater diversity in the Jewish community, both ethnically/racially and ideologically. It is important to remember that the biblical patriarch Jacob had twelve sons, all of them different in character and belief. As the Children of Israel, it is important for Jews to adhere to the principles of diversity and inclusion, which implies open boundaries for all who wish to join and inclusion of those who have been marginalized in the past and have different understandings of theology and Jewish religious practice.
The Society for Humanistic Judaism has already affirmed their commitment to this vision of Jewish identity based on inclusion and diversity. For the good of the Jewish community around the world, it is necessary for other Humanistic denominations of Judaism to do the same.