The problem with his metaphor, though, is that is is misplaced in this context. The government does not slaughter our beef (or any other animal food source). That is a private industry activity (though the government does provide a regulatory function over the quality of that food source). Thus, trying to say that it is immoral to eat beef unless I'm willing to kill it myself doesn't hold water. The same could be said for any type of activity that we do not do ourselves, but contract out to others who do. It just doesn't work with respect to looking at government's use of force.
Perhaps he would have been better off making his case by speaking to the death penalty instead.
We really could nitpick this thing to death.
Bottom line: I like it when a Hollywood-type is an in-your-face NON-lefty. Conservative would be better than Libertarian, but it still feels like a small victory.