>>160
Not the guy you are responding to, but using Rome and Greece's "multiculturalism" as an example is silly*, as I can just point out countries like Sweden that are starting to go into decline as a result of multiculturalism, and then point at South Korea and Japan as a demonstration of racial segregation working extremely well.
*
greece went into decline after race-mixing, and rome went into decline after incorporating non-european areas and cultures into its empire