I will point out for you the difference once again, Punked.
You keep saying we need the full context of the speech. But it doesn't matter how much of the speech you quote....
"If you've got a business, you didnt build that."
You assert that by that he meant "infrastructure". But that doesn't make sense at all. It's not a matter of whether he used the word 'those' or not.....it's just an odd sentence all together (the one you assert he was saying). Why would you say "If you've got a business, you didn't build roads or bridges." It's nonsense. So if you don't have a business, you built roads and bridges? What if you are in the business of building roads and bridges? No matter how much of the speech you quote....that's one hell of a clumsy sentence.
Anyone with half a brain, can determine that the most logical meaning of "that" is the aforementioned business.
Now you mention two distinct cases. The firing one is a deliberate misquote because what he said was "I like to be 'able' to fire people." The other case is actually affected by the words in the next sentence. He is not worried about the poor because he thinks the social safety net can handle it.
You criticize us for analyzing this statement to the umpteenth degree. But really we just think Obama meant what he said. The reason we have taken this to the umpteenth degree is because you keep running from the obvious meaning of a simple English statement, and thus we are required to explain it to you.