Is there anyone who doesn't support the Constitution and the President's right to nominate a Christian woman if he decides to?
Yeah, you. You're demanding that Bush accede to your idea of "qualifications," and that he withdraw his nominee because she doesn't fulfill your "qualifications."
Sure. The president has the right to nominate a Christian woman if he wants to, but the citizenry (via the Senate) has a countervailing right to question the wisdom of his nomination.
And, besides if having a Christian woman on the Court is so important to you, there are probably a 1000 Christian female lawyers in this country who are more qualified to be on the SCOTUS than Miers.