That is not really true, depends what you mean by white. There are two numbers for counting 'whites', one is 'white" and one is "white alone not Hispanic or Latino". According to the census, 73% identify as white. But if you dig deeper, only 60% identify as white but also don't consider themselves Hispanic or Latino. The number that Pew gives say 60% of Democratic voters are white and 84% of Republican voters are white. That aligns up with the 73% number which includes hispanic/latinos who consider themselves white, not the 60% number of Americans who consider themselves as white only. The real number of Democrats who consider themselves white only would be somewhere in the mid 40's percentage range, eventhough Pew's wordage would lead you to believe otherwise. Unless you really believe the US Census data is incorrect.
I can't imagine anyone watching anything on TV or seeing how social media censors content and not see the racial war which is happening against whites in portraying them as the root of all evil.