Your argument ignores the fact that the 20% of the aircraft models that do need 100 octane fuel currently consume more than 75% of the avfuel (100LL) currently produced today. The combined value of their aircraft is in excess of 20 billion dollars. So you will basically be killing everything but recreational GA if you don’t get to a 100-octane solution. You sound a little bit like the congresswoman who recently bragged that she had gathered enough chips to get an electric vehicle and just breezed by all those gas pumps on her drive back to D.C. (I’m fine now - screw the rest of you guys). Whether you realize it or not, your airports, your FBO, and all of the non-turbine GA owners are dependent on the existence of a 100-octane fuel to maintain GA as we (the little guys) now know it.