The basic problem with freedom of speech and of religion is that in principle, and then inevitably in practice, it opens the agora to the discussion of the pros and cons of every alternative cult. No topic is prohibited. So, no sort of doctrine or rite is forbidden within the pale. There ensues a proliferation and interpenetration and confusion of heresies and petty foreign cults. The cult of Moloch is then sooner or later bound to enter the lists. Where there is freedom of speech and of religion, no one will be able to prevent that entry legally.
Where it is legal to advocate and to practice Molochism, it will sooner or later be advocated and practiced, by at least some few.