Where did you see this explanation? Nowadays in the age of youtubes, it should be easy to find and provided as evidence.
You might notice the huge buzz around 'factchecking'? Why do you think all of the sudden we need this sort of nonsense, where we have to check everything the candidates say? Because they lie. Because there are explanations provided on TV that either confuse or obfuscate. That's why people ask for proof. There are slants online as well, but there are significantly more sources on the internet, which allows you to compare and judge the possibilities. In that case, it boils down to whether or not you are impartialand I doubt you are.
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Pigeon explained exactly why people dogpiled on you and not those "hard core left wingers": because you made a comment that can and has been proven false. Rather than throwing around "left wing gaf", "hard core left wingers", "liberals", etc., a better argument than the implication that we can't be reasoned with is to find the details that can support Romney's plan.
You're free to call out the people who are calling Obama's performance last night some crazy gambit. Instead you're whining about your treatment, not backing up your arguments, and implying that the posters who called you out are below you by saying you have better things to do than argue on a video game forum. Are you afraid to look up the subject because you'll be proven wrong? What's so hard about using Google?
Do you think playing the victim ever makes someone or someone's argument look better?