Culture is important. A lot of the westerners have come to this conclusion after being confronted by liberalism and seeing that there's no future in that other than social decay and societal collapse. Especially characterized by sexual liberalism leading to demands for free abortion and confusion of the sexes. There's now a resurgence on westerners looking to the past to find some grounding to their identity. And of course they choose the victorious for a time Roman empire.
Meanwhile hapless mwafrika readily rejected their culture to follow mzungu into their adventure of unbridled liberalism because they have been brainwashed to believe the mzungu way of life is better.