Honestly, no matter what he does if he comes back or not will not tarnish his legacy one bit. I'm actually surprised you would even say that MJ..
Oh, trust me, there's nothing that you can do in my eyes to make Mj any less of a man. If he came back and didn't score a damn point it wouldn't matter to me. The only concern I have with him coming back is what other people will think of him. Right now, the majority of the people believe he is the greatest player to ever play the game. What if he lost his scoring title to Wilt? What if he came back and averaged 10 points a game? Would people still think the same? I'm afraid that his name won't inspire the same aww in kids 5 years from now as it did in me.