Another made-up concept.
The idea is a mixture of cultures is good.
As with everything else is the world, some cultures are superior to other cultures.
There is a hierarchy in the quality of cultures.
Many cultures are complete idiocy.
Mixing cultures is rarely beneficial.
It would be the same as putting foul tasting goop in the stew.
It is best to take those few good qualities from a culture and incorporate them into the main culture.
But beware: most cultures do not have any good qualities.
Just because your so-called ancestors did something is never a reason to continue doing something stupid and many times evil.
The facts no one wants to read.
If the facts make you mad, it could be the truth hurts.