Bearcat: I'm not sure why you are still arguing about this. As said above, a number of professional pilots with vastly more flying experience than you are telling you that you can't do it. Why don't you take their word for it? They know best!
Can you not understand that you need to be trained successfully to fly and land a Boeing/Airbus aircraft and that your PPL / Microsoft Flight Simulator knowledge - although interesting/fun/worthwhile in its own way - is of very limited use here because it is not the same thing.
I now understand why professional pilots get very nervous about / annoyed with PPL-holders who are chomping at the bit to 'have a go' and save the day in an emergency situation.