First, there is no logical contradiction between knowing what a deficit is and thinking that a deficit tends to be beneficial. So it's silly (and, quite frankly, a bit insulting) of you to conclude that I don't know what a deficit even is.
Second, I am not suggesting that the US federal government should fight to maintain its budget deficit. It's just that given the current state of things, a budget deficit is a natural and healthy outcome if you want a healthy economy.