Oh good. Then you no longer stand by the statement that 'The courts, ( and SCOTUS ) would not even consider anything else as deserving recognition as a major religion'. I agree: the courts would not make such a distinction. Teach one creation myth, and you need to teach them all.
That's it...
I really didn't go into a full-tilt search for the SCOTUS approved definition of Major World Religions, but I remember a few cases ( in a general manner ) that they have dealt with over the years..
I seriously doubt they would consider a case that demanded the creation myths of the Mandan Sioux be included in the creationist / ID alternative to Evolution in schools..
They "may" consider the Major World Religions I listed above..
Because, they have numbers... A sufficient following to make them a statistically viable religious group..
Under such a criteria, there might be a few other religions that could get recognition..
Baha'ai, (sp?) Taoism, Shinto, Zoroastranism, maybe Jainism, stuff like that..
Branch Davidians won't make the cut...