There is really no such thing as white privilege.
There is privilege for the young and pretty or handsome. There is privilege for tall people, and well dressed people. There is privilege for someone driving an expensive car and with expensive jewelry. There are privileges for the educated and well spoken.
Polite, energetic, agreeable and hard working people get privileges, too.
There are privileges for those who either believe or pretend to believe in the bullshit of the political left.
There are privileges for those imposing societal friction via diversity.
Most of all, there is privilege for the wealthy. The wealthy can buy their way out of most inconvenience.
Hence, Trump's natural constituency is the poor white class which has been abandoned, and educated whites who think the system sucks, and realize that diversity, though having some benefits, also has costs - mainly societal friction that divides the country.