A presentation by SPJ left me with the impression that FP should be pointing to Miranda and several other languages that became Haskell, rather than to Haskell itself.
Nietzsche isn't calling you a slave. He's saying that your morality is a slave morality. Meaning your moral system was invented by people who were, in fact, at the time, slaves.
How anyone feels about that is up to them. He mostly just wanted to point it out.
1. You're attacking a straw man, which actually is a fallacy.
2. Even if the passage you cited were about "getting less in an absolute sense", there's still no fallacy. zafka already pointed this out in his #1 above. What's so hard to comprehend?
Not true in 1990. Very true today. The Bush tax cuts inaugurated the current era of class warfare. I'd say 2010 is when it really got going.