>>1356501. Walker is not the player, his actions are no more your responsibility than the actions of a character in a book are your fault for turning the pages.
2. It's just a video game, bro, don't take it so seriously.
3. If you disagree with the above two points, you are a psychopath who started and continued the game so that you, the real you, could enjoy killing people.
The game explicitly gives you the opportunity to refute all of its criticisms at the end and you're mad because you decided it was right about everything.
Also, soldiers don't get to disobey orders and there are times when you have to do horrific things to survive, don't sign up for the army thinking soldiers are superheroes. You've missed the point of the game on multiple levels.