I have, and I consider it to be not an RPG but a tabletop form of misery tourism.

Inglorious Basterds, yes, even (/especially) if it's arguably in bad taste. But I assume you've read Maus, so you ought to realise that it's a lot more than just "people with animal heads". If you turn it into Inglosious B., it's no longer "in the Maus universe".

Perhaps the OP just phrased his thoughts slightly unfortunately, but the way it came across for me was that he specifically wanted Grey Ranks-style misery tourism.