How would we outlaw a religion? Would we demand that all religious entities be registered? Would we require all citizens to profess belief only in approved religious entities? Would we have a special "religious police" looking for unregistered "house churches?"
Amazing how many "conservatives" here want to replicate something straight out of the People's Republic of China...
"How would we outlaw a religion?"
We don't have to outlaw it, just take away their tax exempt status. That way they couldn't profit from plotting aganst us.