Elagabalus:  Here is a partial list of cases that hold "A corporation is a person."  There are more than six hundred that fit the narrow search terms, "corporation is a person," but these should suffice for our purposes.  Obviously, those who criticized Roberts' holding on this point were ill-informed.

Tuttle v. Hi-Land Dairyman's Assn., 350 P.2d 616 (Utah 1960); Stone v. Williams General Corp., 642 S.E.2d 211 (Ga. App. 2007); M.S. Kind Associates, Inc. v. Mark Evan Products, Inc., 584 N.E.2d 180 (Ill. App. 1 Dist., 1991), citing Metropolitan Life Ins. Co. v. Ward, 470 U.S. 869 (1985); Krangel v. Crown, 791 F.Supp. 1436 (S.D. Cal., 1992); Stewart v. Verein, 71 Iowa 226 (Iowa 1887), Port Arthur Trust Co. v. Muldrow, 291 S.W.2d 312 (Tex., 1956).