"He honestly has tried with all him might and keeps fighting for it. If the next President loses faith, I won't fault Dubya."
If Washington tried his best but was defeated by the British, he would not have been blamed either. He also wouldn't have been great.
If Lincoln appeased the south, his place in history would not have been cemented.
If Reagan negotiated and compromised with the Soviet Union, he would be just like Jimmy Carter.
GWB will not made an enduring mark, especially if Iraq and Afghanistan return to the muslim pathology that is their likely destiny. His vision is one of Big Government. He still has time, but he will likely not be among the greatest of presidents by a longshot.
You seem more than willing to engage in speculation when it suits you, and you can make a negative prediction about President Bush, whether it makes sense or not.....