To begin with ...
"I SWEAR TO DEFEND THE CONSTITUTION FROM ALL ENEMIES, FOREIGN AND DOMESTIC"
The day Bush cavalierly signs legislation that he knows to be Un-Constitutional he become a DOMESTIC ENEMY of the Constitution.
You've gone way past what is or is not right in this case; you are demanding that Bush veto this bill to PROVE he's a conservative TO YOU.
He doesn't play like that, much to your horror, I suspect.