According to the doctrine of relativism (an integral part of liberalism), there is no such thing as an absolute truth. In other words, all truth are relative. Which automatically creates total chaos as there can be no order without absolute truths (“dogmas” if you will).
Internal chaos inevitably leads to insanity of individuals while external chaos – to the collapse of a society, people, nation, country – and the whole Western and human civilization.
In addition, elimination of absolute truths automatically leads to highly distorted and grossly incorrect perception of reality (that does contain absolute truths). Which, in turn, results in disastrous and even catastrophic mistakes (individual and institutional). These mistakes will inevitably destroy both individual lives and political, economic and social systems (organizations and entities).