The answer depends on the definition of white people. The Census Bureau of the United States define white people as follows:
> "White" refers to a person having origins in any of the original peoples of Europe, the Middle East or North Africa. It includes people who indicated their race(s) as "White" or reported entries such as Irish, German, Italian, Lebanese, Arab, Moroccan or Caucasian.
According to the above definition, the claim is true. But many of the groups included in the above definition are not considered white by other definitions. For example, Wikipedia defines white people as:
> White people is a racial classification specifier, used for people of Europid ancestry, with the exact implications dependent on context. The contemporary usage of "white people" or a "white race" as a large group of (mainly European) populations contrasting with "black", American Indian (sometimes called red), "colored" or non-white originated in the 17th century.