I’ve read that the true measure of heroism is lives saved. By that definition, Kyle was a hero. Many of the lives that he took with his sniper rifle saved the lives of American soldiers who were the targets of the persons whom Kyle killed. These were insurgents bent on shooting, rocketing or planting IEDs with the intent to kill Americans and Iraqis.
Don’t blame Chris Kyle for going to war. Don’t excoriate him for liking or not disliking war. Don’t mock him because he didn’t take a nuanced view of Iraq or Iraqis. Most of the folks who are criticizing this man’s life and military experience have no idea what it is like to be in combat. Most of them are missing the point entirely. Chris Kyle was a pawn in a larger game. Bush and Obama sent him to Iraq to kill and wage war on those whom the US government filled with your elected representatives claim were/are enemies of the United States. This war was never and is still not about Democracy or an existential threat to America. The wars of the past decade and a half have about control of resources. Both Obama and Bush played this game well. They simultaneously played the American people.
Kyle is an easy target. Especially so, since he is dead. The true target of your ire should be the Corporate CEOs, Bankers and Politicians. However, Kyle being the easier target, American Liberals (Democrats) will instead cowardly attack the dead.