It wasnt commodore that killed the amiga. Its was simply technology.
Its like saying is the spectrum 48k had a floppy drive could it have competed against the amiga?
The 80s were about computers that had alll the components inside the keyboard, Commodore made everything, the PC was just a collection of random components made by dedicated component manufacturers, the amiga had a limited lifespan even from its birth. Everyone i knew owned an amiga 500, a few had a A1200 and 99% played games on it. When the megadrive came out and eventually psx, they played better games better gfx for half the price and all you did was whack in a game. For the amiga to compete it had to become a pc, we already had a pc so it was doomed. Nobody owns the PC, its a mutant of electronics.