It Wasn’t Abortion That Formed the Religious Right. It Was Hate For The Black Man.
According to Amanda Marcotte, the modern religious right formed, practically overnight, as a rapid response to the Supreme Court's landmark ruling in Roe v. Wade. Or, at least, that's how the story goes. The reality, Randall Balmer, a Dartmouth professor writing for Politico Magazine, says, is actually a little less savory to 21st century Americans:
The religious right, who liked to call themselves the "moral majority" at the time, actually organized around fighting to protect Christian schools from being desegregated. It wasn't Roe v. Wade that woke the sleeping dragon of the evangelical vote. It was Green v. Kennedy, a 1970 decision stripping tax-exempt status from "segregation academies"—private Christian schools that were set up in response to Brown v. Board of Education, where the practice of barring black students continued.