Yeah, pretty much, then crash it. People lose tons of money and they run walls of negative media until decentralized currency is ingrained in the public's eye as worthless. If you grew up in america do you remember how they taught you about Communism? That it is flawed and can never work. End of story. No discussion. Next Subject. It would be worth the investment now to eliminate the competition further on down the road. You can't just print more bitcoins after all, and that's what governments love so much. You don't need a bank to store your money when you have an encrypted wallet in cold storage on a few PGP encrypted flash drives. Universal adoption would be the end of their business model.

There's probably flaws in that, but it's just a stupid idea running around my head that I don't know enough to disprove.

It could be something else besides banks too. Organized crime pulling a massive ripoff? Inflate the price by pumping high asks into the market then pulling out with a previously horded stash of coins. That might not cause a crash, but it would cause a drop in demand at some point. Again, just some fun little ideas to play around with.