An normal, intelligent, well-intentioned man would never express such a thought.
He is of a “depraved mind” (Rom 1:28), as most leftists are.
Make no mistake, “white culture” is a proxy for “Christian values”, another phrase for “God’s Law”.
They hate God’s law. Without understanding that, you will look at their conclusions that a dysfunctional culture is good and a functional culture is bad, and think you’re going nuts.