Of course he would. That's what he's saying, it's the AG's job to enforce the law as it is, not as he would like it to be.
He never said he thought Roe was correctly decided legally or that he supported abortion as a political matter. His position was compared to Ashcroft's, who opposes abortion but enforced the law while he was AG.
I wonder how many people would support Gonzales for Attorney General if he stated that he would enforce slavery if it was the law of the land.