Its name means universal, and yet critics charge the Catholic Church is losing followers in the United States because it isn't inclusive enough. Outraged by the sexual-abuse scandals and chafed by the church's unwillingness to amend some traditional positions, many Catholics have given up on their church. But some still feel tied to the rituals and practices they grew up with, and have responded by forming their own churches that operate outside the bounds of Rome. "We are church with a small 'c,' " said Mary Anne Nugent, a retired librarian from Suffern N.Y. whose group, Spirit Rising, celebrating its...