Interesting article! I think one reason some people of colour “act white” is simply because it is a survival tactic. When you’re in a world dominated by a certain group that is more elite, you naturally try to conform to this norm in order to get accepted by the elite group. I believe many people of colour get drawn into this in order to advance our careers, social standing, etc. For example, as a young adult, I actively tried to learn about white popular culture such as hipster bands and TV shows so that I could feel included in casual conversations with my white peers.