I offer to sell my white priviledge for $50 bucks and see if they go for it.
Yes, that is the best response to ignorance. Make them pay for it. First estimate what they can initially afford, and continually escalate the price upwards.
Lazy liberals have avoided consequences, so add some.
The price for privilege is 20 dollars. If you get the money, give a hand wave, and say there, you now have privilege.
If they keep with annoying bantor, keep talking price and state that privilege has costs, like maybe $50.