Well, I should say NAYMA should support youth EVENTS, not classes per se.
What I'm saying is that the organization, under whoever's leadership, should be free to persue a course of action that it believes would lead to greater numbers of young sailors on multihulls. If that means choosing a single class and attempting to reign in all the participants under a standardized umbrella, then it should be able to do so without being harangued for having some perceived alternative, nefarious agenda.