Conservative Republicanism and white nationalism are now functionally the same movement.
That's Iowa Rep. Steve King, the prime architect of the party's newly aggressive anti-immigrant stance, a position he obtained by scuttling post-2012 party efforts at reworking and moderating the party's past immigration stances. He’s voicing these thoughts in support for Dutch white nationalist stain Geert Wilders.
And yes, this is the new Republican "normal."