You’re right, but there are some companies seeking to make ethically sourced cocao products. My personal favorite is Tony’s Chocolonely. They do a ton of research on their sources, and even still they openly acknowledge that it’s extremely difficult to hold their sources accountable and will switch sources as soon as they know it’s happening. They also have other principles to disincentivize forced and child labor in the first place, like paying higher wages and sourcing from farming cooperatives as much as possible.