Sega and Sony are obviously the most involved in the fall, but I'd say Nintendo at least got the ball rolling with the ferocious console war, like little that's ever been seen. The main difference is I don't think Nintendo ever gave Sega any serious wounds, just if anything kept Sega trying to fight them and otherwise make errors trying to overcome them. But a 32X doesn't kill you, but it can start the death roll.
The Democratic Nintendo fan....is that a paradox? I'm fond of one of the more conservative companies in the industry, but I vote Liberally and view myself that way 90% of the time?