Nobody has said that. The only thing shown in the picture is that there are fewer white people on earth. Which is objectively true.
At the same time if you consider anything Stephan has said as white supremacy you absolutely proving that you are holding white people to a higher standard than most other races. Hes never actually said anything that indicates white people as the superior race.
I just think you are a racist and you want to bandwagon with any excuse you can find.