Simple: stop recognizing them as religious groups and call them what they really are.
It's like those folks who ask on here daily "What right is the government going to take away next?"
Aside from the fact that they're asking the wrong question, they're also demonstrating a lack of critical thinking skills which sadly, is in ever decreasing supply in this country.
The question should be "what Constitutional basis does the Government have to try and take away that right or regulate that behavior?"
That's just my view though, and I seem to be a member of a shrinking population here on FR and in this country. (Sigh...)
Granting the government the power to determine which religious groups to recognize/not recognize would be the end of religious freedom.