He is just spreading misinformation. He knows socialism leads to fascism.
Fascism is about control. Nationalism is just the tool or the bait used to lure the masses in, putting the fascists in a position to motivate/ manipulate the masses and exert that control.
Patriotic Americans are rightly proud of their nation and the freedom it has provided. The real Fascists . . . the leftists . . . desire to destroy that freedom and control the citizens. The true spirit of our American heritage is individual freedom, and the Leftists in charge are attacking those freedoms on many fronts.