Anti-gay stigma is useful to those wishing to exert control over a group via establishing in-group / out-group dynamics. One can remove a social competitor from

Anti-gay stigma is useful to those wishing to exert control over a group via establishing in-group / out-group dynamics. One can remove a social competitor from a group by outing them as gay (even if they are not). The fact that it is capricious and the accusation unfalsifiable is an essential component. A 3rd party tool that can objective establish gayness would take away the subjectively. Society will have to move on to other mechanisms of group control just like we moved on from witchery and heresy.