You don't have to rely on (faulty) memory, the very Wikipedia article mentions that the USA was a signatory of the Hague treaty.
As an aside it is pretty hilarious in hindsight that at the time all the countries who are now permanent UN Security Council member (which its associated veto powers) were in favor of a binding international arbitration court, but it was vetoed by the powers of that time like Germany.
> it [the US] doesn't believe in the concept of human rights.
Unless when China, Russia, Iran or DPRK violates humans right according to their Secretary of State; in that case they cry an additional Mississippi river over human rights violations.