Think what you will about the wars in Iraq and Afghanistan. They weren't always well-executed - few large-scale undertakings ever are - and they've been extremely costly, but they freed a total of 50 million people from tyrannical oppression and horror. The world is certainly better off without Saddam Hussein and Osama bin Laden in it, and is also better off with a diminished al Qaeda, and Taliban. Almost all of the credit for this improved state of affairs goes to the Bush administration.
Evidently, the Syrians would like to add Bashir Assad and his cronies to the list of people with whom the world is no longer afflicted, and they miss having someone in the White House they could have counted on to help.
Thanks to The Weekly Standard for the pic.