As plain as the fly on your face

How do you not know the US debt is unsustainable?
How do you not know that higher taxes hurts the economy?
How do you not know that global warming is imaginary?
How do you not know that the Arab Spring is bad for the US and good for radical Muslims?
How do you not recognize your own hypocrisy on guns and personal protection?
How do you not know there's a fly on your face?