First of all, use of the word nationalist here is misleading. This guy favors the Ukraine again teaming up with Russia. That's Russian nationalist, not Ukrainian. As for socialism, I think the "nationalists" are the ones with the fear of capitalism and who would look to the Soviet past for examples.
As for the Masons being socialists, well, sometimes the word socialist is used on FR in a way that covers the great majority of Americans. In that sense, a lot of Masons may be mildly socialist. However, what the Masons really are for is God and country. I'm not a Mason and don't even to my knowledge know any. But I strongly suspect that most Masons vote Republican.
I recommend this page on the masons.
Most Masons are conservative, in my experience. Politics are rarely discussed.
Enjoyed your link. Never has so much mis-information been written about such a good organization.
You mean American or Anglosaxon Masons. Continental Masonry (Grand Orient - which used to be centered in France) is VIRULENTLY secularist and elitist.