Why is calling the group of Jews in "The Long Walk to Dachau" a "parade" ironic?

It's not really a "parade" for to celebrate or showcase anything positive. The soldiers sadistically decide to "parade" the Jews through town. All wearing yellow stars, the Jews are malnourished and in miserable condition. An older man keeps falling down then struggling to his feet to keep up. It is really a spectacle of suffering designed to humiliate human beings and turn the German population, who watch them, into sadistic hate mongers.