Please, tell to this kids http://www.telegraph.co.uk/comment/6475543/Its-a-wonderful-mixed-up-world.html that a shame that she is mixed race. Please give use some hard evidence of what you tell, because I can find quite the opposite https://www.theguardian.com/lifeandstyle/2015/jul/02/diverse-parental-genes-lead-to-taller-smarter-children-says-extensive-study . The theory you advance, I can found it only on alt-right website with (not so) beautiful graph and no real data or scientific approach.