Indeed, understanding and preparing for a singularity is extremely difficult.
But what people believe is a part of culture. Very soon we're going to be facing problems on a scale far greater than we've ever seen before. E.g., in the next few decades it's very likely that a BILLION people will be displaced from their homes. If we haven't gotten honest about beliefs that have to be abandoned, then that mass migration will create a Mad Max future. So
@Quintessence's suggestion that "it's always been that way", while true, is an unworkable perspective moving forward.
So we have to stop believing in things like unbridled capitalism, endless growth, theocracies, misogyny and so on.
In practice, for the last several decades in Europe, the de facto implementation of "multi-culturalism" has been to pretend that we all share the same values and that even if we believe different things, we can live together in harmony. But some beliefs do not mix well. For example, theocrats and secularists are by definition at extreme odds with each other. Thoughtlessly forcing them to live together is a recipe for disaster.