That's a bit of an appeal to authority, no? It might have given results but it wasn't without cost, is it net-positive overall?
This style doesn't build bridges, it's purely adversarial, diplomacy requires building bridges for long-term sustainability of relations.
How is it an appeal to authority? He wasn't appointed to his position in life through bloodline or familial connections. He made insane wealth through business dealings, much of it through negotiations with sharks. Then he convinced half of the country to vote for him with no political experience against a dynasty.
Sure it's not my style and I don't quite understand how its effective, but to dismiss it outright as ineffective is naive.