You're confused because you favor a simplistic view of the world where you have evil people and good people. The US is not an enemy of Palestinians in general.

You're confused because you favor a simplistic view of the world where you have evil people and good people. The US is not an enemy of Palestinians in general. Policies historically reflect conflicting goals and problematic facts on the ground. And problematic facts on the ground are often not the US's fault. The biggest problematic thing is outsiders that support Palestinians armed conflict with Israel. And then get butthurt and double down due to the predictable results.