Just a couple of points to follow-up.
The social laws, in the few (and it is only few) areas that do have them, DO exempt religious use. This is a fact. Indeed, otherwise it would make a mockery of the existing religious exemptions. New York State does not have any statewide social host laws. NYC therefore does not have such laws. Nassau County on the other hand, does have a county-wide social host law. And to take that as an example, this is a verbatim quote from the Nassau County social host law:
b. The provisions of this subdivision a of this section shall not apply to: i) the consumption of alcohol or alcoholic beverages by a minor whose parent or guardian is present and has expressly permitted such consumption; or ii) the use and consumption of alcohol or alcoholic beverages by a minor for religious purposes.
And I stand by my previous assertion regarding the Constitutionality of the laws. I say so based upon experience and case law I’ve seen in this area.