".. it also forbids the making of laws to prevent the free excercise of religion."

Indeed it does. You can interpret that to mean:
1)That anyone in any group can demand religious ceremony & prayer be allowed, no matter what the makeup of the group (as it was done in a group I sometimes attend....and as those in that website (http://adultthought.ucsd.edu/Culture_War/The_American_Taliban.html)would seem to favor.)
or
2) That persons who choose to assemble and conduct religious ceremonies or prayer in private circumstances or in buildings designated for religious purposes not be prevented from doing so.

(these could be worded differently, but I'll assume the sense is clear)(could there be 1a,b,c etc? or 2a,b,c?..maybe...but)

Obviously, I support #2 and decry ANY attempt to install #1 as a rule of law.