Discussion - In Federalist 10, Madison

Discussion

In Federalist 10, Madison writes of the dangers of factionalism in a large heterogeneous society.  He argued that the Constitution was an effort to “cure the mischief of factions” by the concept of FEDERALISM - in which power is divided between the national (federal) government and state governments - with the states being responsible for making democracy work on local issues within their jurisdiction and the national government responsible for those issues that affect all Americansor benefit.  Over the years, the lines between purely national and purely state responsibility has been significantly blurred but the US continues to emphasize the importance of federalism as one of our primary government concepts. 
Do you think the Federalism concept is still valid today or should we we working towards centralization of all significant issues in the United States. Please explain your answer.