They will blame it because it exposed the broken system and they know that the broken system will not be for the long term and they have back up plans at the bay to curtail their own losses when this collapse happens. If an economic collapse were to happen, I think that bitcoin will not be the only one that can help us in that collapse because there is still gold and silver to help with that, remember that you can choose what you can hedge against the collapse but I advice that you should diversify.