1. Did he criticize George W. Bush, too?
2. There was nothing "haphazard" about the withdrawal of U.S. troops from Iraq. They were withdrawn in late 2011 under the terms of the U.S.-Iraq Status of Forces agreement signed by George W. Bush in November 2008. How "haphazard" could it have been when it was a process that was designed to take place over three years?
You are being a little selective in your history Child. The Obama admin refused to renegotiate the status of forces agreement. That was intentional on Obamas part. Whether the subsequent mayhem that followed visa vi rise of ISIS and insurgencies was also intentional or just lack of any common sense by Obama/Biden is irrelevant. With a status of forces agreement in place, the instability that has followed might have been avoided.
It took decades for us to recover Europe after WWII and it served us to do so for just as many decades. While the ME is not the same, we did have an opportunity to lead that region to a better place. That opportunity was squandered, and the blame goes across both parties.