I did a look at Lucas’ early life and history. The only possibility might be his mother’s maiden name “Bomberger,” but the name could be jewish or German. Lucas himself was raised Methodist and even the jews at jewornotjew(.)com reject him from their ranks.
That isn’t to say he didn’t have a lot of jews involved in his production and inner circle (kikel). Not to mention, the jews love claiming how jewish Star Wars (or anything successful) is.
He very well might be, but at minimum I would say he’s a self-hating White.
Definitely a mediocre at best writer if nothing else.