Of all the contradictions in which dogmatic relativism is ensnared, this one is the most visible in practice. Taken to its conclusion, this relativism leads to the claim that no one can prefer, take care, or protect any culture except his own. Pure freedom knows no limit. Pure liberty subverts everything, including liberty itself. This position does not truly inspire respect for conscience.
Psychology operates in the same way as logic - pure freedom tends to subvert liberty.
Doubtless it is a matter of blindness, but is also one of duplicity. Its logical incoherence has its own logic that relativizes dogmatic relativism. Put another way, late modernity affirms more than it says it does. This way of speaking is contradictory, but it is also coherent. It is contradictory because its argument continues to violate logic, but it is coherent because what it forbids, requires, and inspires essentially cohere to change in the same direction the rule of human conduct.