John -- Another possible strategy you may or may not have considered is this...
It sounds like working on the national front with US SAILING can be and should be part of a long-term solution. But if some/many in the delegation believe we are already on the right path, then expecting short-term miracles may be futile and frustrating.
If New Zealand and England and other nationalities already have the ball rolling, I wonder if US multihull sailors could come alongside and support those efforts for the immediate future. All the while, we could continue to work on the US delegation so if/when a multihull proposal is reconsidered, our delegation will view it in a more favorable light.