The intellectual energy of the party is not on white nationalism, and that is not a prioirity of the majority of its members, who would gladly vote for a Marco Rubio/ Nikki Haley ticket.
You must have missed my quote earlier...
And Nikki Haley says she is white.
If that is your example of diversity then you are only giving evidence to support the OP.
White nationalists traditionally don't like immigrants. Nor are they in favor of letting individuals determine their own ethnic/ racial categories.
Inspired by this post, I looked up
Nikki Haley white. This led to possibly the stupidest political controversy I've ever seen, with some editors and writers at prestigious organizations who should be ashamed of themselves, to say nothing of operatives of the South Carolina Democratic party.
http://www.motherjones.com/mojo/2011/07/indian-nikki-haley-says-she-is-white%20http://www.salon.com/2015/06/23/the_curious_case_of_nikki_haley_what_the_republican_governor_can_tell_us_about_american_racial_identity/The dumbest statement came from the state party chariman.
If it was advantageous to be white when registering to vote, Harpotlian is basically admitting that those charge of South Carolina was engaging in illegal practices to prevent minorities from gaining ballot access. In 2001, South Carolina had a Democratic Governor (Jim Hodges).