". . . the Articles of Confederation have inconsiderately endeavored to accomplish impossibilities; to reconcile a partial sovereignty in the Union, with complete sovereignty in the states.” - James Madison
Another strawman argument. No one was arguing for COMPLETE state sovereignty in the Union. The delegates were sent, after all, to amend the Articles, specifically to give to the general congress the power to regulate commerce and the power to lay taxes. They sought a stronger general government, not a new form of government.