James Madison wrote in Federalist #10, “a rage for paper money, for an abolition of debts, for an equal division of property, or for any other improper or wicked project, will be less apt to pervade the whole body of the Union, than a particular member of it.” That is to say, it is in the interest of the wealthy (and especially creditors) that federalism be replaced by a consolidated central government.
The full essay is at "The Moneyed Interest and Federalism in the U.S."