You stacked the deck to favor Obama. Chickenhawk doesn't mean what you say it means.
It means anyone who supports war but didn't serve. The presence or absence of the draft is utterly immaterial.
Well, sonny-boy, the difference here is that I was actually alive and able to talk when the word was first coined, so I have some idea of the context in which it emerged, and it has EVERYTHING to do with the draft. In fact, it has everything to do with one war, Vietnam. As you might know, assuming you've read some histories about those times (I know they were before you were aware yourself), it was a very controversial war. There were crowds of people protesting against it, and people who publicly burned their draft cards or ran away to Canada to avoid serving.
Now, the interesting thing is that for the smart, the wealthy, and the connected, there were perfectly legal ways to get out of going to fight. Bill Clinton made use of one of them. George W. Bush made use of another. Dan Quayle made use of essentially the same one Bush used. (Old joke: "How do you say Canada in Republican? Answer: Indiana National Guard.)
Roughly at the same time, the words "hawk" and "dove" came into use to describe people who were for or against the Vietnam War, respectively. "Chickenhawk" is an evolution from that, used to describe someone who was for the war as long as someone else had to go fight it, but personally did not serve.
That's the original meaning of the word "chickenhawk." And you are the one who is trying to redefine it, not I.
Your implication that I'm trying to protect Obama is absurd. Barack Obama is very problematical. He's continued policies he promised to end, gave us a twisted mess for health-care reform when we should have and could have had something much better if he'd given proper leadership, shown himself to be a bought-and-paid-for corporate shill like so many other politicians, and played fast and loose with the Bill of Rights in the same ways Bush did. I am very far from an Obama fan. But there's no point in calling him something he's not just because I don't like him much.