Plenty of leftists are critical of the PRC, always have been. Media that is perceived to be leftist does feature stories on how China treats the Uighurs and the protests in Hong Kong. What you have here is a business making business decisions. Why do you assume the team owners and the NBA head honchos are leftist? Whether it is the NBA or Apple or Google or G.M. , they only care about profit and market dominance. There is no reason to assume they are leftist, they are hard-nosed Capitalists.