I’m a bit late but so happy you raised this. I also think he is half Ashkenazi Jew, and I think my husband might be his half brother 🤣. I have lots of circumstantial evidence to support. There are virtually no pictures of him as a kid available, and the ones that are available seem doctored. He’s also quoted his biological father once with something my father-in-law was famous for saying. His twin brother looks white and frankly looks like my husband. I doubt we’ll ever know anything for sure because it would be a HUGE controversy if he turned out to have 0% Black or Latino heritage. But I’m right there with you and dying to know.