And under the 13th Amendment prohibition on slavery, contracts for indentured servitude, peonage, and slavery are illegal and unenforceable. But under Libertarianism, once an individual was under such a contract, they could be held captive for life and sold on the auction block like livestock.
The XIII Amendment prohibits slavery and involuntary servitude. It states nothing about indentured servitude and it says nothing about peonage. At least you got it right that slavery is prohibited by the XIII Amendment. It doesn't surprise me in the least that you continue to be dishonest.
AMENDMENT XIII
Section 1.
Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.
Libertarianism is a bottomless well of willful ignorance.
Mr. Justice Miller, delivering the opinion of the majority of the court, after observing that the thirteenth, fourteenth, and fifteenth articles of amendment of the constitution were all addressed to the grievances of the negro race, and were designed to remedy them, continued as follows: "We do not say that no one else but the negro can share in this protection. Both the language and spirit of these articles are to have their fair and just weight in any question of construction. Undoubtedly, while negro slavery alone was in the mind of the congress which proposed the thirteenth article, it forbids any other kind of slavery, now or hereafter. If Mexican peonage or the Chinese coolie labor, system shall develop slavery of the Mexican or Chinese race within our territory, this amendment may safely be trusted to make it void.(169 U.S. 649) UNITED STATES v. WONG KIM ARK. (March 25, 1898)