On his radio show Monday, conservative commentator Erick Erickson argued that the Supreme Court made a grave mistake with its decision to legalize same-sex marriage in all 50 states because "it's not really true" that most of the people who identify as LGBT are "born gay" -- they're made gay by "parental issues" and "abuse."By legalizing same-sex marriage, Erickson reasoned, the Supreme Court is going to increase the size of the homosexual population -- because the "collapse" of the traditional, Christian family is "directly inverse proportional or inversely related to the rise in people who identify as gay." The more non-traditional, non-Christian families out there, the more gay people who will be "created" via abuse or parents with "issues."Putting aside for the moment his noxious belief that LGBT identity is predicated on being "abused," there is one upshot of Erickson's vision of the future -- Christians like him will have no choice, he said, but to withdraw from mainstream American life.