a response

If you examine The Downward Spiral, one can easily say he does know about Nietzsche and you can see the same lines drawn from Antichrist Superstar by Marilyn Manson, which TR Produced. I cannot say for certain though since Down In It is PHM era.

"The Becoming" is clearly a Will to Power statement. "Destroy yourself to become what you are."

"Everyday is Exactly the Same" is evident of Nausea towards life.

"Happiness in Slavery" is a mocking of slave morality. "Claims he does what he wants"

That's it, I'm going to read Nietzsche.