Generally when the Religious Right likens its own efforts to William Wilberforce's crusade to end slavery, they do so when discussing the topic of abortion, but apparently it applies to their fight against marriage equality as well.
In the wake of the Supreme Court's rulings on DOMA and Prop 8, Rep. Tim Huelskamp has introduced a constitutional amendment seeking to ban gay marriage and while Matt Barber and Steve Crampton both realize has no chance of passing, they are going to continue to push for it and stick with it just like Wilberforce did because eventually Christians will realize that their "religious freedom [is] being crushed by the homosexualist juggernaut":