Your humanism notion is a side issue to whether religious behavior, in Judaism, is inspired by fear of punishment. I was merely debunking that idea<quoted text>
Like I said earlier, if one is doing good deeds outside of any imperatives from their faith, then they are exhibiting humanistic qualities, at which point we are no longer talking about religion.
Likewise, if one is doing bad deeds outside of any imperatives from their faith, then they are exhibiting sociopathic, criminal, or some other negative human quality and again, we are no longer talking about religion.
If, however, someone who would normally behave well, is suddenly behaving badly because of some perceived imperative from their faith, then I think it is fair game to attribute that behaviour to their religious beliefs (e.g. Islamic suicide bombers).
But if you want to get into the merits of humanism, first you need to consider the merits of ecumenicalism, then branch into humanism. The problem I have with your broad strokes is that they tend to be black and white without appreciating the middle ground.