That where you're wrong, the AMA embraces multi-rotors. I see stories in the magazine I get from them quite often. There may be a few holdouts who do not like them but the majority do. Things are changing as multi-rotors become more popular.So you do recognize the fact that they do not accept us. And we can all recognize the fact that drone drivers don't want to go to a AMA field and fly around in a half circle over their landing strip, with a AMA instructor attached to their hip. So lets just go our separate ways, with the AMA doing what they have always done and admit they want nothing to do with drones or drone drivers. The sooner the AMA admits they don't want us (or our money) to be part of THEIR club, the better of we will all be.
The AMA has been wonderful for the hobby of model aircraft. Drones are not a model of any aircraft. They are a new form of aircraft and are not part of the 'fly in a circle' mentality of the AMA. We do not fit into the AMA mold, and the AMA mold is not going to change (nor should it). Model aviation should stay with the AMA, and drones should be regulated by FAA aviation rules.
Now you could go your own way, but doing nothing yields nothing. I choose to support the AMA for the work they do to help the hobby, the included insurance is just a bonus. If a new entity starts that helps the hobby I am happy to support them also.