Not all White Nationalist are neo-Nazis, skinheads or KKKers.
Some of us simply want America to remain like it was in the 1950s and before. When the country was majority White. When we shared the same values, worshiped the same God, the same heros, listened to the same music and watched the same tv shows. When we shared the same history and was proud of it. Not ashamed that our founders owned slaves and that we "stole" the land from the Native Americans. I don't like it when my daughter wants to watch Dora the Mexican or my sons want to be like LeBron James.
When we hear that "diversity is our strength" what is really being said is that White culture must be replaced with that of non-white people.
I do not want my children listening to rap, wearing baggy clothes, or embracing a "gagsta" lifestyle. When you laugh that my children watch Leave it to Beaver or Andy Griffith I see a time that was better, more wholesome based on the traditions and values of White culture.