>You highly overestimate the value of culture in a multiracial society.
No. This is my field.
I think people misinterpret culture for something else. Culture is too big for most people to take in. That's why cultural integration is extremely difficult to achieve and why multiculturalism will always fail. (note. multiculturalism is not the same as co-existence)
>Culture will always and has always taken second fiddle to race.
Without cultural identity we wouldn't even understand concepts such as race because we would still be pondering how to smash rocks together.
Maybe it's different in Canada and America but i'm willing to bet that a Canadian has more in common with someone from Canada than someone from France or Germany or Poland, in terms of points of reference.
>I would argue that most non-whites take part in a paralel culture
There is a lot of pseudo research about migration out of African into Europe but everything points to a very limited cultural exchange if anything at all.
Sub Sharan African cultures has very little in common with European and Asian cultures. This is correlated in genetics.
As much as i love racial differences, it is the cultural differences that is most interesting because it shows us how we developed.