A lot of the caucasian centric discussion about race comes from the fact that a lot of english speaking websites are centered and focuses around the anglosphere.

What is and isnt white varies from location to location in parts of the world where that matters. So you have people who would be decidedly light skinned but black in the Caribbean argue their whiteness, but as soon as they immigrate to the US that's out the window. Likewise latin americans can create a racial hierarchy and given the literal european descent of many of them there is a case to have here, but put them in the united states and then they suddenly turn not white. In fact a puerto rican independence revolutionary leader got his first taste of 2nd hand citizenship when having to travel through the Jim Crow south and found that despite being an ivy league educated white boy back home, he was colored in the states.

But context matters more than anything else. Its why for example an american immigrant family may feel as if their culture is being appropriated when white people start stealing it, but members of that ethnicity living in their home country might find it endearing and cute to see.