You're on the mark: Gonzales is unfit for office and should not be confirmed. But will even ONE Senator oppose him on the immigration issue? Not likely. The Republicans in the Senate are virtually worthless on this issue.
Alas, I think you are right about most if not ALL Republican Senators. Their sole interest is the perpetuation of their sinecures and the best way to do that is not rock the boat.
This is one of the reasons we need term limits.