You'd be better off watching Dr. Amos Wilson's lectures on YT....
But put simply, all groups practice discretion when mating/marrying because marriage is not about love, it's about family.
And family is business.
Real estate, heirlooms, and all manners of wealth/property get passed down and built through familial ties.
Generational wealth is not accidental.
It is carefully nurtured, cultivated, and passed on by those conscious of its value.
Therefore curating the selections potential inheritors make in mates is not only expected, but required.
This is why those with "old money" only deal with those that have a similar "pedigree".
That is how they maintain their power.
But if you're not building anything...
If you're not trying to establish any legacy....
If you have no vision for things which reach beyond your own time here...
Talking about exercising that kind of discretion does sound very silly.
If your endgame is simply to accumulate enough money so that you can "fukk dimes and flex", what does it matter what race they are?