The trees and land are a resource for these countries with vast numbers living in poverty. Telling them they cannot use these resources just isn't going to work.
If we non-Amazon countries want them to stop deforestation, we have to dig into our pockets. But we we don't. Ecuador tried it, requesting funds for not drilling for oil. They were offered next to nothing, so the drilling is going ahead, which means roads and roads mean deforestation.
I speak for someone from the UK. We cut down our forests for the industrial revolution. We reached and passed peak oil in the north sea for the (supposed) benefit of the country as a whole. How can we expect other countries to not use (abuse) their resources the same?