After Laclau - Tom

In Emancipation(s) Ernesto Laclau asserts:

The Universal is absolutely essential for any kind of political interaction, for if the latter took place without universal reference, there would be no political interaction at all: we would only have either a complementarity of differences which would be totally non-antagonistic, or a totally antagonistic one, one where differences entirely lack any commensurability, and whose only possible resolution is the mutual destruction of the adversaries.