I don’t recall, say, McCain’s career ending over singing “bomb bomb bomb, bomb bomb Iran” because joking about killing a million people is fine. Particularly at a time when killing half a million just wasn’t quite good enough.
Because serious people things. Very serious people.
Or when Obama, who was busy authorising no oversight double tap drone strikes where you kill someone (and whoever happened to be around) and then killed their family and neighbours at the funeral, joked about calling in a drone strike on some boy band because his daughters listened to them.
Funny that.