Those that haven't experienced the speed and fluidity that a CSPPC brought to an Amiga will likely never understand the conflict that I deal with every time I use Microsoft or Apple products today. I know how it could work. I've seen how it should work. But alas, Amigas are somewhat rare, and Amigas with CSPPCs are extremely rare. And the vision that comes from having gained familiarity with an Amiga with a CSPPC is virtually impossible to pass on to others. And others who actually are willing to listen to and understand that vision exist only in a fairy-tale world.
Call me crazy. Call me a Grade-A Moron. That is the curse of a CSPPC owner.
Have you tried any of the "next gen" derivatives? We might fight like rabid animals over which to use and why, but there's a reason we do it; that... essence you are trying to describe is the one thing they all have in common, at least to many an Amiga fan. Of course, there are puritans that insist only on genuine original Amiga hardware (I'm kinda 50/50 on that front, they'll have to prize my BPPC based A1200 from my cold, dead hands).
Trying out AROS will literally cost you nothing. Trying out MorphOS will cost you next to nothing. Trying out OS4 will, sadly, cost you an arm and a leg on "new" hardware, but if you can find a second-hand machine for sale, there's no real need to re-mortgage the house.