The aim of this article is to show how the institutionalised multicultural political arrangements in Lebanon may have provided for a certain period a degree of local harmony and related toleration when national demographics were relatively stable (or demographic growth was somehow similar within groups or harmony was somehow imposed) but it has not been a force for the same once demographic change has (dramatically) occurred, since it automatically undermined the basis on which any agreement was founded. In addition, whatever harmony it does produce at the national level is not reciprocated at the local level. Indeed multiculturalism may well be a defining feature in the implosion of the Lebanon as a nation state. The reason for thi...