In isolation, I can certainly sympathise with a lot of the complaints that I hear from my American friends. There's no doubt that there are a lot of people who are being let down. But the US system is still, so far as I can tell, the best in the world and the reality is that modern-day American soldiers coming back from active service (or "returning warriors", if we're employing the sort of incredibly twee lingo that seems to have come in since 9/11) are probably better cared for than pretty much any soldiers in human history.

That doesn't in and of itself mean that more couldn't be done, especially given some of the other stuff that money is wasted on and given how little the population at large contributes to the war effort.