Why Do Some People Say Taylor Lautner, Johnny Depp, And Cristiano Ronaldo Are Not White?

On wikipedia it says Taylor Lautner is mostly of Dutch, French and German descent which is white, and he also has some Native American blood from his mother. It says Johnny Depp has German and Irish ancestry which is also white however he also has some Native American (Cherokee) blood in him. Cristiano Ronaldo is Portuguese so he's white. The only reason he's got a bit of a tan is because he's from a Portuguese island called Madeira and the weather is really hot there. So yes Taylor Lautner, Johnny Depp and Cristiano Ronaldo are all white. I'll never understand why people say they ain't white cos there all of or mostly of European ancestry.