This is an attempted coup alright, but it's from idiot miners who want a bigger slice of a smaller pie. If we cave on this, they will never allow our network to become competitive enough to disrupt the banksters.
Bloating the blockchain to DOA levels will disrupt bitcoin, not the banksters.
Besides, 8mb blocks, or even 80mb blocks, aren't enough to scale to such levels. You'd need enormous storage (and bandwidth) per day to compete with the volume of banks and credit cards.
Visa does 2000 tx/s. Bitcoin needs 300-700mb/blocks to do that, not accounting for spam.
If you add mastercard, bank transfers, swift, paypal, and, finally, cash transactions from person to person that could be digitized with btc, not even 1gb blocks would scale.