What's Mallard raving about today?
President Obama, Taxes.
The stupid...it burns.
This Straw Man is predicated on attaching some relevance to whether someone pays additional taxes when filing their tax return.
Not paying additional taxes in April is simply not equivalent to "not paying any taxes." Or did you not notice the taxes deducted from your paycheck every week?
This is not something I would expect to have to explain to a living creature more intelligent than a paramecium, since it only requires a passing familiarity with "addition" and "subtraction."
Since Mallard mostly occupies himself with the daily struggle to keep himself spittle-free, I guess it might be a hard concept for him to grasp. As such, I would be better of trying to explain it to the paramecium.
As someone once said...it's like they take pride in being ignorant.