Two things..One) It may be humorous to some and I can't lie it was funny to me as well but…You, I, We have to be careful of what we say and whom we are saying it to. What may be perceived as humor to me may be the fuel for someone else's fire or the push they need to actually go and do what someone intended as a joke. Although it was a "joke", at the end of the day the message was the president is F****** up this country and the only way to save it is assassinate him before its too late. And guess what, some mentally unstable mind or extremist is going to see it just as that without the humor.
Two) Im a veteran and served in combat. We as in our country have a president who is our leader, commander in chief. I feel there is nothing wrong with disagreeing with your leader but there are ways of going about that. When you openly make a mockery or disrespect your leader what that does is show division which in turn shows weakness. An army or force that shows division or weakness will be less respected and looked upon as prey for the strong. Imagine being in a combat environment and the enemy looking from the outside and possibly from within sees division and no loyalty to the leader…Imagine all that can go wrong. Im not just talking Obama it could be Bush, Clinton, Reagan or even Me…LOL.