"But Terri has not been denied due process,"
Who was Terri's attorney during this process? (Not who was Michael's attorney, who was Terri's attorney?) How many times did Terri or her attorney appear before the court?
Terri's attorney (and Guardian ad Litem) was Richard L. Pearse, Jr. He was appointed by the court on June 11, 1998 (30 days after the petition was filed). I understand that Mr. Pearse was present throughout the trial.
Terri, for reasons that should be obvious even to you, did not appear in court.