Mechta you are making a lot of false assumptions to support your argument.
Piltdown Man, you are of course right that many incidents have been averted by action on the part of the crew. However if that number is matched by the number of incidents caused or contributed to by the crew, then we are no better or worse off than in a robot airliner.
No-one knows how many incidents have been prevented by the crew. You would have to go through every airlines database of safety reports to determine that. You can't just assume its the same number. There is a reason that air travel is the safest mode of transport and its not just the technology. You also can't just assume that autonomous 2D vehicles can be easily replicated in a dynamic and often volatile 3D environment. People who know nothing about the airline environment often quote that "Aeroplanes are so sophisticated they can land themselves!" True, but in a very limited environmental window and they still can't get themselves into the air automatically. Until software can't be corrupted, hacked or changed then autonomous airliners are just a tech nerds fantasy.