I never said it didn’t. I said those distinctions are secondary. They are window dressing. How the Latin Church dresses and worships is not objectively better or worse than how the Ukranian Greek Catholic Church dresses or worships. They are, ultimately, one in Christ. Christ is the culture.
Frankly, I find your use of the word “culture” confused and unhelpful with regard to settling the issue.
There are, first off, a number of definitions of the word ‘culture’ which come into play and add ambiguity to your claims. It isn’t clear which meaning you have in mind when you distinguish, for example, Christian culture from other cultures.
One reason this is problematic is that other cultures often have religious elements in them, so to speak of Christian culture as a kind of epitome – Christ is the culture – almost by definition creates a competitive hierarchy with those cultures where other religious belief systems are integral to them. That implies a denigration or subordination of those cultures to Christian culture.
Perhaps that underlies what appears to be the mistaken assumption that white culture is somewhat historically synonymous with Christian culture.
This is where the ambiguity in your use of the word ‘culture’ creates the problem rather than resolves it.
If we assume the broadest definition of the word as “the sum total of the ways of living of a group of people,” then it might be true that Christianity, Catholicism, Eastern Orthodox, Mormonism, or any religion, is a ‘culture,’ in that sense. But that also pits every culture and religion against Christianity or Catholicism, and your claim that “Christ is THE culture” would seem to make you a Christ supremacist, instead of a white supremacist. Still problematic.
You did try to mitigate that a bit by claiming cultural trappings are secondary, but that still implies a competition in terms of the trappings manifest in Christian culture as opposed to those outside.
I suspect the only way of resolving the problem is to distinguish between essential metaphysical truths and accidental cultural traits, with the former having permanent value, but the latter being important (and not trivial) in an impermanent but contextual sense.
That allows the possibility that accidental cultural traits could be meaningful expressions of permanent metaphysical truths without being in direct competition with them. Ergo, metaphysical truths could be expressed in a variety of different, and equally valid ways in different cultures without those being in competition with each other in terms of validity. However, some cultural expressions might contravene or be antithetical to metaphysical truths. That would mean some cultural trappings could be shown to be inferior to others or even unacceptable for any culture.
The key would be to outline the metaphysical truths in order to properly compare cultures, rather than pit cultures against each other based solely on the superficial level of the differing cultural traits themselves.