"When America was a racist country, Democrats were primarily the ones engaged in racism" - True statement - but did you notice he said democrats not liberals? This is the slight of hand. Dig deeper into this piece of history and ask who were the racists in the democratic party, not liberals but conservatives. The Southern Dixiecrat who fought to stop the liberal Democratic agenda. Who opposed civil rights? Conservative Democrats and Libertarian Republicans. Who left the Democratic party for the Republican party? Southern racists Democrates.
Here is a question to think about - What does it mean to be white in America?