SHA256 is not going to get broken anytime soon. If that happened, it would basically mean every other electronic transaction system would get cracked as well. Bitcoin would be the least of the worries. Practically every credit card encryption is rocking the SHA256.
I think the only people who think bitcoin is broken are the people who don't understand it and are conspiracytards who would rather invent or believe in the exciting myth and mystery of a conspiracy rather than the cold boring truth.