There are some really good videos on that question by Eric Aarvoll on YouTube if you are interested. He dates white people back 10s of thousands of years
Discussion
Not going to watch some 2 hour YouTubes.
Yes, if we're just defining "white" as "people with low melanin", yes they've been around 10's of thousands of years.
But I have far more in common with (say) an Asian immigrant who grew up in California and speaks English than some Russian oilfield operator in Siberia... even if we're both "white".
Fair enough