I notice that it's those who surrender who insist that they weren't whipped. Yet regardless of what you want to call it they lost. They quit. They gave in, threw in the towel, surrendered, capitulated, yielded, laid down their arms, conceded defeat.
They went home. There's a difference. Think about it real hard, and subtract all the big pile of dead people from "we wuz whipped" from the answer.
You'll get it eventually.
After they killed 300,000 Yankee soldiers.
And as I mentioned before, with less resources.