This book sociologically argues that the nonbinary sexuality and gender of the LGBTQI are not recent inventions of gay rights movements and activism that constitute an ideology. Homosexuality and gender diversity have long been existing in society since Adam and Eve or Adam and Steve. The gender identities of the LGBTQI community cannot be fully understood using the deductive moral framework of natural law but by inductive sociological research and theory that view gender as social and cultural realities. Recent papal pronouncements and church documents have inaccurately labeled gender as an ideology rather than an authentic human experience. This volume contends that gender and the LGBTQI community are not mere social construction and ideology but represent a community of persons with human dignity. It recommends an updating of the Catholic Church's philosophical moral framework on sex and gender to unconditionally welcome the LGBTQI group in the Catholic Church.