Why the Department of Education is unconstitutional

The general welfare clause is not a seperate clause used to create programs of it's own. The general welfare clause is the power for the federal government to collect taxes and spend to benefit an enumerated power.
 “[T]he laying of taxes is the power, and the general welfare the purpose for which the power is to be exercised. They [Congress] are not to lay taxes ad libitum for any purpose they please; but only to pay the debts or provide for the welfare of the Union. In like manner, they are not to do anything they please to provide for the general welfare, but only to lay taxes for that purpose.”-Thomas Jefferson
 Gibbons v. Ogden: "Congress is authorized to lay and collect taxes, &c. to pay the debts and provide for the common defence and general welfare of the United States. ... Congress is not empowered to tax for those purposes which are within the exclusive province of the States." The general welfare clause is mostly the power to tax, not to tax and spend as they please. Federal funding for state jurisdicted activities is out of federal jurisdiction.