I don't think it's about dependence. It's just hard to drum up political support given the geopolitics of the situation. Remember that it's only Western countries plus (including?) Japan who even say that there's a problem - much of Africa and the Middle East, including a huge fraction if not a majority of the world's Muslims, explicitly endorse China's actions in Xinjiang. It's not like apartheid, where the country might actually become a pariah if we can just organize against it; most of the world doesn't think China's doing anything wrong.