The OCA suggests that God might be defeated if it weren't for Lon telling secular lies ostensibly in God's defense. If Lon Mabon wants to believe that homosexuality is wrong, nobody's stopping him from practicing his personal beliefs in his personal life. Nobody's stopping him from teaching his beliefs to his children. People of sincere faith do not attempt to legislate their personal morality. People of genuine religious belief have a faith that's strong enough that they can live in a complicated and diverse world and not feel threatened by the mere existence of others whose beliefs are different.
Discrimination is a two-edged sword.
Why, if we establish the precedent for discrimination in education, there'd be nothing to stop atheists from discriminating against conservative Christians. Those who take up the sword of discrimination will be injured by the sword of discrimination.