FamilySearch is a wholly owned corporation owned by The Church of Jesus Christ of Latter-day Saints (also known as the LDS Church or Mormons). Genealogy crosses cultural, ethnic and religious boundaries. My family may be members of the LDS Church, but my ancestors were Baptists, Methodists, Presbyterians and Lutherans, to name a few. As far as possible, FamilySearch tries to be absolutely fair and neutral in its dealings with researchers of all faiths and backgrounds. For example, as volunteers (Missionaries) at the Mesa FamilySearch Library, as a policy, we do not discuss religion at all with the patrons, except as it relates to research on their family lines.
I am sure that there are individuals who do not follow this policy, but the FamilySearch websites and programs are open to all regardless of religious affiliation or no religious affiliation.
That said, there are some things about genealogy that are unique to those who are members of the Church. Because of our fundamental religious beliefs in proxy ordinances for our deceased ancestors, there is a lot of misunderstanding about the Church and its members. The two programs, New.FamilySearch.org and Family Tree are used in part by members of the Church for qualifying ancestors for proxy ordinances.
To those who confuse both our motives and our actions, we (and I am in particular) are willing to discuss our beliefs. But a fundamental tenant of our believe is as follows: "We claim the privilege of worshiping Almighty God according to the
dictates of our own conscience, and allow all men the same privilege,
let them worship how, where, or what they may." (11th Article of Faith). There will always be those who see conspiracy at every turn, but we have no alternative agenda when it comes to genealogy.
Family Tree (unlike its predecessor New.FamilySearch.org) is not limited to members of the Church. Anyone can register and gain access right now, even before the program is completely released and before many features have been added. Family Tree may well become the largest repository of sourced family history information in existence. It will be unique in establishing a way to identify each person in the world family tree. New.FamilySearch.org was intended to do this, but had some fundamental limitations. Family Tree goes past those limitations and builds on the huge resources available. If you turn up your nose at Family Tree because of its religious sponsor, you will be missing one of the most valuable resources for genealogical research that has ever been created.