Mussolini merged nationalism and populism.You seem to know - you tell me.
If you think Republicans espouse fascist principles, then say what they are.
Pretty much across the board people who were different were not liked, homosexuals, gypsies, the poor, etc. Mussolini did not choose Jews until made to much later by Hitler. After all, Mussolini's mistress was Jewish.
The world doesn't respect us was very common in Germany and Italy.