There are reasons for which some in Britain still admire Winston Churchill and there are reasons for which some in Russia still admire Uncle Joe. Same is true for Harry S. Truman.
Coming back to your question. Why do people admire Adolf Hitler? He was loved by many (in Germany and Austria), back in 1930s and 1940s. He took a broken nation and turned it into a social paradise. He fought the British, French and other European colonial powers and gave them a taste of their own imperialism and colonialism. They