Hungarians are typically considered to be of Nomadic Steppe descent or Romani descent as the diaspora that is Romani has a fairly large concentration within Hungary. I never said she wasn't white, but some people don't consider Mongolians or Romani to be Caucasian.
As for Sara Sampaio she is Portugese, take that however you want, but if you're going to equate her to being white you might as well group anyone who has "pale" skin as white as well considering large swathes of the South American continent especially through Brazil and Venezuela have intermingled with many of European descent especially following WWII.