Well as a libertarian, he really doesn’t care what their culture is about as long as it doesn’t “affect” him.
He doesn’t see that they degrade and erode the culture, are sources of disease and filth and are really people in need of mental and spiritual health, and are trying to destroy the concept of a judeo-Christian nuclear family (that I know he himself has and is proud of - kids, grandkids and great grandkids). And that their goals are to change the culture that way.
I agree. RP is naive. The “culture” comment was shorthand for something along the lines of your post.