Go read Daniel Webster's statement in regards to a draft from when he was in office. He, and most of the other founders, were clear on any conscriptions being a violation of the founding principle upon which or Republic was founded, and in direct violation of the constitution, well before any of the amendment's regarding slavery were ever written.

“A free constitution of government is to be construed upon free principles, and every branch of its provisions is to receive such an interpretation as is full of its general spirit. No means are to be taken by implication which would strike us absurdly if expressed. And what would have been more absurd than for this Constitution to have said that to secure the great blessings of liberty it gave to government an uncontrolled power of military conscription?”

Daniel Webster on the draft