ok, ultie, i read it three times and i still don't get it. which one is saying that mary-sues are bad and which one is for mary sues? and how is being the hero of your story a)the same as being a mary-sue (often, not always), and b) how is it a radical act?
last time i wrote a story, i was a mediocre electrician in a post-apocalyptic world who was an expert climber, so he always had to redo the ceiling's electric circuits. he had a knack for dodging and parrying attacks, but could not hit anything. it's easy to create a good protagonist without going into mary-sueism, but i fail to see how it's a radical act. hell, it was mostly wish-fulfilment in my case, because i can't understand electricity. and that was the point of the story. mary-sueism is wish fulfilment taken to its extreme, and it gets boring for the reader, but it's the best thing ever for an amateur writer self-insert.
that's the reason superman sucks kryptonian donkey balls.