Lawrence Auster has responded to my claim that blacks have contributed lots to Western civilization by distinguishing between civilization and culture. It’s a distinction that I’m happy to accept.
The meaningful social divide in our country is—and always has been—not white/non-white but black/non-black. Everyone on the non-black side of that divide eventually becomes part of the majority population, starting with Quakers in New England (who, despite being English Protestants, were the wrong kind of English Protestants), then non-English Protestants, then northern European Catholics, then southern and eastern Europeans, then people of Middle Eastern origin … and, eventually, people of Latin and Asian ancestry.
That’s pretty optimistic about Hispanics, though.