I've been down this road before many times. In today's world a US Sailing Membership required regional championship is simply not feasible. If you do have one you would be running it for 3-5 boats that would actually have a shot at going to the Alter Cup. If the Alter Cup starts requiring a regional win. If the Alter Cup remains open to anyone you would not even get the 3-5 boats.

You would have a hard time finding people willing to run the regional event for 3-5 boats. Some areas are stronger than others but other than the Coastal areas I doubt you would get your regionals run.

US Sailing has to learn that you attract more flies with honey than with vineger.