The Boss's songbook also has a good parody, in the spirit of the Old Left. We used to sing in the 60's:

Though your thoughts be unfurled, and ditto your chatter,
You can't fool the world with mind over matter.
But foes dare not trifle with thoughts brought by rifle!
They won't dare deny, Die Gedanken sind frei!

Now thinking is fine, but shooting is better!
So let's all toe the line, and all fire together!
The road to salvation is mass liquidation,
And when they all die, Die Gedanken sind frei!