Why did Nazi propaganda attack the KKK?

by RonaldK00L

I saw this infamous piece of Nazi propaganda attacking America; however, I'm left wondering why it was attacking the Ku Klux Klan, when the Klan hated blacks and Jews as Nazis did? Notable is that the text in the bottom was in Dutch, indicating it was from the Dutch SS.

commiespaceinvader

Not to stifle any further discussion but /u/kieslowskifan has written about this poster in one of their answers before here and here.