For me, it isn't so much about 'White' or 'whiteness' although I am white and don't feel the need to apologize for it; I'm not into playing the Heel in a far-Left narrative--The Narrative--where those with fairer skin are the easily identifiable bad guys responsible for all evil in the world. For me, it's about Western culture and civilization and--more specifically and even more importantly--the saving of it.
But you better believe Chinese communists are big believers in Han supremacy. You also better believe most people in the world are racially motivated and view those Not Like Them with suspicion and hostility. For decades in the US, the idea of the color-blind society was taught and viewed as the ideal. That changed with Obama, who sees his own half-whiteness as an affliction. He clearly hates that part of himself. That hatred found expression when he was able to exploit and widen racial divisions in the US for the sake of short-term political gains.
How you respond to this shift in societal attitudes is up to you. I'm personally proud of what my white ancestors have accomplished and don't want to see the best of it lost. If I'm forced to pick a side, I'll go with them.
Basically all this. I really don't care that much about other races. Honest to god, I wish them well. But other races (well, really, just one highly specific one constituting about 2% of the global population) sure seem to care A LOT about me.
I am evil.
I need to be replaced.
Shit my ancestors did needs to be torn down and ripped out of history books.
I can never speak positively about myself or my culture.
I can't defend myself against people trying to assault or rob me if they are of certain races.
I have to pay money to randos who were never slaves because my ancestors may or may not have had slaves.
I can't get admission to top, elite generating schools.
I have to go to the back of the line for healthcare.
I can get fired and have my life destroyed for publicly saying "hey this is a bit fucked up"
Gradually you begin to notice that you will not be left alone. Gradually you begin to notice that people out there do in fact very much want you dead, your kids raped, and they think its funny.
Gradually you begin to hate them.