All the "great American white nationalists".  
The US is on the verge of nuclear war and squarely in the middle of the biggest and most dangerous international crisis in the past 50 years.
So what do they do?  Protest against the "race", "ethniiciity", and "color" of a significant portion of the military that would defend the nation, and basically, their fellow citizens (whose citizenship they probably do not recognize).
This is where the Trump presidency leads now and into the future.   
THIS is the existential moment for the US.  The "war" Trump wants and is risking is not stewing offshore.   It is here.  It always has been.  The biggest "risk" to the US is Trump.  And, it is playing out vividly.
Trump talks big about "threats" to US citizens.  Which ones, Mr. President?  Which ones?