I'm just going to tell you what I see as I can't speak for others. But in South Africa, after the end of Apartheid white people vote for the neoliberal party, the DA. However after Trump ran it was like a switch flipped in these peoples heads. I'm just going to say this to get it out of the way, but white South Africans are by far the richest group on the country due to apartheid. These people are still rich, and to claim they became fascists due to material conditions is legitimate class reductionism. They saw that it's now okay to be openly racist again and started voting for the VF+, what was considered a joke white supremacist party went from 0.1% percent of the vote to 5%. This is having a negative material impact on society as this party has taken over suburbs and is redirecting funding from communites that need it to their rich white suburbs due to their new influence. It's also caused the neoliberal party, the DA, to take a hard turn to the right and purge their black leader in order to try get their voters back from the white supremacist party, the VF+. Quite a lot of this can be traced back to a foreign influenced propoganda campaign about white farm murders, elevated by the US under Trump as a racist dogwhistle. Seriously there is no material conditions influencing these people to be facist, as I've said white South Africans are by far the richest group in South Africa.