Interesting comparison and pictures OP. However, I don't see the viability of a secondary chain being alive long enough. The issue that I see is that a duplication of the chain, and a situation in which both are alive, would cause tremendous chaos and most likely ruin Bitcoin. I think that it is in everyone's best interest (including the people led by greed) to avoid such a situation (excluding the people that are trying to ruin Bitcoin).
Yes it would cause chaos, and in the end both chains would lose to Litecoin or other coins, and bitcoin would be over.
I doubt people would reach a quick consensus in a few days to save bitcoin, so a hardfork would definitely ruin bitcoin.
We shall see what will happen to ethereum (grab your popcorn), and we will have experimental evidence, not just trollings around here.