Of course I have a bias. Go ahead and tell me you don't.
Yeah - I think I get where you're coming from.
I doubt it. Here's where I'm coming from.
'Anyone can see you're a bigot! You're probably so bigoted you can't understand bigotry! You ask for proof? Don't be preposterous!!'
Haven't you now agreed that someone with your *bias* probably can't understand the bigotry in it? Or perhaps you would be honest enough to admit you really don't care if your *bias* is bigoted?