True. I think you just answered the question people have always had about mixed race marriage. The King of the Universe sees all humans as just that, human. Yet, many Jewish parents would be aghast if their son brought home a girl of another race/culture, yet God never mentions any of that folly in this story. Talk about inclusive!
We will see others in the next book, Exodus, that are completely shunned by The Creator. Clue, they were not human and had six fingers instead of five.
The Creator is very inclusive, look at Ruth who as a Moabite was forbidden enter the assembly (according to His own words) even to the 10th generation (Deut 23:3), yet she was accepted as one of His people. Her descendant just a few generations later was King David!
Yes, those who are excluded are not even human. It's an uncomfortable thought, but there are some "vessels of wrath prepared for destruction" among our societies, going all the way back to Genesis 6. Yet for all humanity He "desires all to be saved and come to the knowledge of the truth."