"Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached." - Manuel II Palelologus
They will simply DO it. The California state bureaucracy (the public masters) will spring into action immediately and issue licenses and other state documents. Jerry Moonbeam Brown will refuse to defend the amendment or appeal to SCOTUS. Private groups will have to organize and finance the appeal, SCOTUS will decide.