You want to see a lib get his back up?
State these undeniable truths about liberalism to him:
1) The core of liberalism is using force to make the responsible and innocent pay for the consequences of the irresponsible choices of others.
2) Liberals support no individual freedoms outside of those related to consequence-free sexual behavior choices. All other individual actions are to be controlled, taxed and punished.
Well-reasoned observations.