If bitcoin can't survive this, and we also can't fix it, it's fundamentally broken. If it's fundamentally broken, it's better that we find that out sooner rather than later.
Bitcoin is not fundamentally broken, the system just assumes people are not idiots and will not work against their own interest. That assumption is obviously wrong. Majority simply doesn't want to think, it is too painful. It's just much easier to be in a heard. Being in heard is so comfortable, that way somebody else is guilty when shit happens.
You can't successfully, long term, defend any system from the inside. If you are saying that Bitcoin is broken because people depending on a system don't give a shit about the system, then - yes, it is broken. Also is any system who's insiders behave like that.