Socialism and “Progressivism” are slightly different ideals.
Progressivism is Socialism “of the 21st Century”. Progressivists believe in Egalitarian moral-values, that, homosexuals should be “married” and races should mix, for a variety of reasons. Progressivism is a huge slice and component of ‘Modernism’, if not the main core of it. Progressivists believe that “evil-whitey” is to blame for everything, and the world can only “move forward” with non-white, non-male leadership. However, Progressivists never explain the disparity of “Leadership”. When challenged, it’s always a backpedal into a bad argument, that “we’ve always been oppressed”, as a means to explain the lack of Leadership from women and minorities. So, this begs-the-question, why are white-males still the De Facto ‘leaders’ of, arguably, all important matters in life???
Socialism is Morality. How should people interact and relate with each-other? Should a Society be Homogeneous (genetically close) or Heterogeneous (genetically distant)? Many “Socialists” are Liberal-hypocrites. They say one thing, but do another. Or they do one thing, but think another. This fallacious thinking appears as, “Do as I say, not as I do”. So Progressivists and Socialists are generally untrustworthy. To proclaim Social-values, and actually follow them, is usually the realm of Religion. Religion preaches that your actions and words must coincide. So Socialists are similar to Judæo-Christians, except, Socialists don’t necessarily follow the ‘Rules’ they wish they could impose onto anybody-else.