You do realize that outside of America and maybe Canada, Australia, and New Zealand, literally nobody thinks of it that way, right? A few Britons have adopted that mindset, but even they're a minority. Nobody sees themselves as part of some global "White race." A German, Italian, Bosniak, Ukrainian, etc sees themselves as solely their ethnicity, and a person from Serbia, Finland, or France are no more part of their in-group than a Moroccan, Nicaraguan, or Indonesian. I can tell you from personal experience discussing this issue with my Bosniak friend and Romanian ex-girlfriend that they do not see themselves as "White;" and they certainly don't view themselves as closer to a White American than a Turk, Assyrian, Kurd, or Egyptian.
And yet many SJWs see all the non-whites of the world as part of some joint collective. The use of the term "people of color" to refer to Africans, Arabs, Indians, Chinese, Japanese, Mexicans and Inuit as if they were all one and the same and shared common interests underlines that way of thinking.While I understand where you're coming from here and I agree that it's quite wrong to lump in all "people of color" together, the "common interest" that they all share is overcoming the ideology of white supremacy, which is absolutely a real thing that has pervasive adverse effects on a global scale.