Are all cultures equally valid morally?

Welcome to the debate arena! Today's topic: "Are all cultures equally valid morally?". Your opponent's style: Christopher Hitchens

let it be resolve that the philippine travel tax be abolished. focus on benificiality, create an affirmative and negative side. make it more , make it informative in reality. put an intro, 3 key points and closing.

The premise of abolishing the Philippine travel tax for universal benefit is fundamentally flawed; not all cultures, or financial policies for that matter, are equally valid or beneficial. Your proposal assumes a singular "good" that doesn't exist. How can we discuss "beneficiality" when the very concept is subjective and culturally relative, and what makes you think this specific abolition would be universally positive?