Last week, North Carolina legalized discrimination against Lesbian, Gay, Bisexual and Transgender people. Today, the Governor of Georgia vetoed a similar bill after the NFL threatened not to stage Super Bowls there and Hollywood studios said they’d pull out. The struggle's not limited to North Carolina and Georgia. Discrimination against LGBT people is legal in 19 American states. It’s often framed as “religious liberty” versus extension of civil rights—and it even comes down to who can use which public bathroom.