It's not that simple. Fascism evolved out of socialism the same way Marxism evolved out of liberalism. They're obviously distinct but socialists like to ignore the similarities. The authoritarianism collectivism and the planned economies. The major distinction was socialists goal was globalism and fascists was nationalism. Hitler may have been disingenuous when he said he was a socialist but mussolini and Giovanni Gentile were both hardcore leftists until they realized they had more support from the right. All that said the people living in America that identify as communists have brain damage and should be treated with as much disdain as flat earthers