The funny thing is, you can't prove anything. either, but you seem to think you can with the incomplete data we have. That's not evil - it's just plain-out stupid.
I'm not trying to prove anything, other than right wing faith in conspiracies, of apparently needing to believe in them to support their most cherished beliefs.
Whenever Conservatives are faced with unpleasantries, their leadership attributes them to some sort of conspiracy by their political opponents, even invoke conspiracy theories to attack the character of their opponents. The conspiracy theories around the Clintons were manifold, the lack of Iraqi WMD's obviously some conspiracy, "voter fraud" is based on an underlying conspiracy theory, Birtherism is conspiracy, and this whole thing wrt unemployment numbers is in a similar vein.
When it's really time to question underlying assumptions, Repub leaders can rely on their base to accept conspiracy as a form of denial, as a way of resolving cognitive dissonance favorable to maintaining the faith.
1- Employment numbers slowly improving?
2- Couldn't be, because Obama is ruining the economy!
3- Therefore, the numbers must be a lie! It's a conspiracy!
If faith in 2, above, weren't absolute, they might not be vulnerable to 3, but it is, so there you have it. They want to believe, quite desperately, so they do.