But you just said our righteousness is imputed, not infused. So which is it?
2 Corinthians does not say we will be considered or declared righteous. It says we will [b:2khg2t4w]become[/b:2khg2t4w] righteous. And not just a little righteous but the righteousness of God. That would be a full and perfect and true righteousness.
Such a full, perfect, and true righteousness is needed to enter heaven, as no imperfect thing will enter therein. A dung heap covered with snow is still a dung heap. Christ did not just cover us, He washed us.