Taken to the absurd and logical conclusion, a tax rate of 0% should produce lots of revenue? Nonsense. A tax rate of 100% also produces no revenue since it eliminates all economic incentive to engage in the taxable activity. The ideal rate is somewhere in between as the Laffer curve suggests.

Any time a group in a nation's people, whether ethnic or political, are deprived of the right to bear arms they are destroyed in droves.