Not all mainstream media is bad (both U.S. and non-U.S.), but you also shouldn't take everything at face value. Do your own research, check out multiple sources and draw your own conclusions.
As someone who has served in the U.S. military, the rest of your post comes off somewhat offensive. It's not like there are just a bunch of mindless Soldiers / Marines / Sailors / Airman over there gunning down civilians (though, yes, there have been a lot of civilian casualties). Also, last I checked the U.S. wasn't the only country who has sent troops to Iraq/Afghanistan (many of which have been engaged themselves).
As for body count, I'm not sure where you're getting your facts, but the civilian count includes those killed by allies and insurgents (i.e., not just U.S. troops), and most were 1-3 individuals in small, but frequent incidents (yes, that's still one too many, and it starts to add up). The logs revealed about 15,000 extra civilian deaths that weren't pubicly reported before (but, even then, those logs include deaths that are not directly related to the war -- i.e., no troops involved). In total, around 156,000 deaths (civilian and enemy). That's still a lot, regardless of how many are civilians or not.
Personally, I don't agree with either of these wars (never have) and think we should cut our loses and pull out. Most, if not all ,of these civilian loses are not intentional though. Civilian body counts usually tend to outweigh the enemy body counts in just about every war, since there are usually far more civilians (especially in urban warfare). In combat, there's not a lot of time to react and make decisions. Unfortunately, those reactions and decisions are not always right.