No conclusions can be drawn from the certainty, or the doubt, of a stupid man.
Will you admit to knowing many people who saw combat and who are, in fact, as stupid as you are? I know many who are as stupid, or moreso, that you are.
Your attempt to invalidate the views of others by pretending to be omniscient and "declaring" what they have or haven't done, and then "declaring" that your bogus declaration somehow renders their opinions invalid. It doesn't work that way.
You, on the other hand, are fully empowered to invalidate your opinion by publicly demonstrating just how stupid you truly are.
Have a great day. Let me know if you have any questions.