McKinley's points coincided with the Republican platform of the day. You need to come to grips with the fact that your "free trade" lunacy coincides with the leftists then and now. Leftists increase their power when the masses are kept impoverished and ignorant.
McKinley was shot by an anarchist (leftist).
Meanwhile Leon Czolgosz had been talking. The 28 year old blacksmith had come to Buffalo from his home in Cleveland three days before the shooting with just one purpose in mind: to murder the President of the United States. Over those three days he carefully rehearsed his plan. It is believed that Czolgosz was a student of noted Anarchist Emma Goldman. He stated that he opposed the form of Government practiced in the United States and gave the impression that he had done the country a favor. He claimed that he had no accomplices and that he acted completely alone.