I suspect that what you refer to is the special dispensation that Native Americans, who by all rights are entitled to quite a bit of autonomy as a First Nation, have to pursue a religion that dates back to pre-Colombian times, and which includes use of a controlled substance in very specific rituals. No doubt recreational use of same would be frowned upon by traditionalists even within the community.

There's a bit of difference between a Native American community continuing on with a tradition thousands of years old, and a 'religion' that was created SOLELY to take advantage of this legal loophole.

If one wanted to do anything, then, it stands to reason that one could simply create a religion whose guiding principles included the sacrament of [fill in currently illegal activity here]. That seems a bit silly, doesn't it? So would you believe that religious sects who refuse modern medical treatment/vaccination for such horrible yet preventable diseases as Polio and TB should be allowed to let their MINOR children suffer permanent disability and even DIE simply because a vaccination is against their religious beliefs?

Obviously I believe cannabis use should be legal- that's one of the reasons I'm here fighting the fight. I just think that trying to get AROUND laws in this rather silly manner is at counter-purposes to getting the unfair laws CHANGED outright.