I think we need to understand where some of this White Nationalist ideology comes from and why people are embracing it
As a white guy in the west, I am reminded almost daily that I am inherently some kind of vicious, genocidal racist and misogynist, simply because of the color of my skin. Furthermore, I am told that what I have earned is a result of "privilege", and that this privilege is a consequence of oppressing minorities.
In other words, if you demonize people long enough, they are going to start pushing back. They are going to get frustrated, especially when many of them have bent over backwards trying to appease, or help in some way, minority groups, Muslims, or the less fortunate. It is never enough: Sweden welcomes thousands of refugees and economic migrants into their country, and yet we have Islamic terrorist attacks in that country, and a rape epidemic that isn't a result of the native population's behavior. We have migrants accepting generous welfare from western nations and then turning around and calling the people who gave them the money "kafirs" or "infidels".
Now this situation is particular to Europe for the most part: Muslim immigrants get along pretty well in the US with the native population.
But when westerners turn on their televisions and see terrorist atrocities happening on an almost weekly basis around the world, it makes an impression.
Fact: Muslims are far safer in western countries than in Middle-Eastern
Fact: you are far more likely to get killed by a fellow Muslim than some lone-wolf, crazy white guy.
People in the west start embracing White Nationalism out of frustration, and in some cases rage. It is less about racism, and more about a reactionary impulse.
For people who think white guys are in power in the US, I would look a little further to see who owns virtually all the major banks and financial institutions, the Hollywood studios, 50% of the professional sports teams, and most of the Silicon Valley firms. Who owns Google and Facebook? It isn't white guys--it's Jews, and some of them foreign born. 40% of the Fortune 400, the richest people in the whole world, are Jewish, even though they are a tiny minority. Trump is controlled by Kushner and his Jewish handlers. AIPAC pretty much determines who becomes president.
Here in Illinois, our governor is a Jewish billionaire (Pritzker), and the Mayor of Chicago is also Jewish (Emmanuel). The average household income for a Jewish family in the US is double that of whites (whites come in behind Asians and Indians as well).
So when White Nationalist complain about Jewish influence and power, can we really tell them that they are wrong? George Soros almost single-handedly wrecked the British economy when he shorted the Pound. These are dangerous people with large amounts of political, social, and financial power.
Jews tell whites that we must allow refugees into our countries and allow Muslims and others to live within our borders, but Israel either expels people with brown skin from the country (which they did recently to Africans), or they put Palestinians and other Muslims into camps or ghettos.
I don't know of a single white person who wants the US to be involved in the Middle-East on any kind of military level. Many whites are actually somewhat sympathetic to the Palestinian cause.
"Racism" is a leftist slogan used by Jews and others to silence criticism.
Would it be racist for an Arab living in Damascus to object to a plan that involved settling 50,000 white Christians in the city? Would it be racist for a Muslim living in Cairo to become concerned if a militant Christian was elected mayor of the city? Would it be racist for Muslims to worry about the sudden appearance of Christian churches in which sermons were given denouncing the people of other faiths as sub-human infidels, and urging violence against them?
There could be a racist element to it, but these are legitimate fears and concerns.
When you tell white people that they are not allowed to have their own countries, and cannot speak in their self-interest, you invite problems.