Yes, this issue will become a huge mess before it's dealt with effectively. It's complicated and the gov't can't run a one car funeral, that's for sure.
Our fathers deliberately put ethanol in their cars for decades, dry gas. Since most gas has 10% ethanol we no longer need it to keep our fuel systems clean and dry. That's its purpose, not to add octane. Clean engines run better and pollute less. It absorbs water and that's good for daily operation but bad for storage.
As for it eating your boat pumps faster than your parts dealer can order them (exaggeration, but not much!) they must not have neoprene seals. Neoprene is unaffected by ethanol.
As for ethanol loosening rust and making it clog carbs, that would be true if there was no fuel filter. The rust should clog the filter, then the filter comes out, cleaned, put back in, and you're running again. That is, unless it's breaking the rust into such tiny pieces it gets through the filter. I have some reading to do!