It occurs to me that it would be useful to come up with a whole galaxy of "Liberals are so stupid that..." jokes. You know, like Chuck Norris jokes or Your Momma jokes. Seems like a real opportunity.
Like "Liberals are so stupid they think Ahmadinejad getting nukes is fine, but exhaling will destroy the world".
Or "Liberals are so stupid they thought 94% tax rates would bring in more revenue than 35% tax rates".
Or "Liberals are so stupid that after a blank check to run education anyway they pleased for two generations, when they fail tests they devised themselves they claim it is the test's fault."
Or "Liberals are so stupid they think throwing massive subsidies at the health care sector will make prices go down."
Or "Liberals are so stupid they think higher savings reduce economic growth."
P.S. I noticed a problem in your tagline - division by zero is undefined.