Ironic that by the time they were finished, they had gone deep into American mythology: Luke was a midwestern farm boy in every way.
And of course, the Vietnam war was long since over.
And who would ever see America as a brutal dictatorship more than Vietnam? Star Wars was like Rocky if Rocky won! It (apparently unintentionally and ironically) inspired Red Dawn, Battlestar Galactica, etc. Oh, how Lucas must’ve hated that his movie helped propel Reagan into the White House! (BG’s dominant message was a rejection of Eastpolitick in favor of recognizing that you can never broker peace with an enemy sworn to your destruction!)
Yeah, pretty ironic. Would probably explain why ROTJ had the Ewoks (not to mention the more overt depiction of politics in the prequel trilogy).
Though to be fair, Lucas started penning Star Wars while Vietnam was still going on.