Progressives aren't a political party. Oh, wait, 1912....
You're talking about Rand. She was an Objectivist. Bit I can't talk of Progressivism?
I have already in enough detail explained to you what her philosophy was and the difference between selfishness and self-interest, yet you keep circling the wagons.
Progress implies change, change in science, technology, education, politics, even economics. Such efforts cost money. So I ask again, what funded that progress? It doesn't just happen as if by magic.
You're right, capitalism is around 500 years old:
It's record in history. And not only did incomes shoot up exponentially, but health, lifestyle, and wealth, what you and others want to redistribute.
Note too the progress you claim from the Stone Age...none whatsoever.
Odd argument to begin with free markets protect individuals but at the same time exploit individuals. What you're doing there is conjoining Adam Smith's view with Karl Marx's.
Mercantilism was much like what we have today, the government controlling the economy.
Corporations are the equivalent of joint-stock companies under Mercantilism. Modern corporation have absolutely no relationship to corporations under fascism. Corporations today are government entities, created by law and protected by the government and given all sorts of favors like subsidies and tax cuts by the government. That collusion is the epitome of corruption.
But if coporations collude with the government, rent seek government favors, then they are part of state capitalism and no part of the free market. As Franz Oppenheimer put it in his 1975
The State: "I propose in the following discussion to call one’s own labor, and the equivalent exchange of one’s own labor for the labor of others, the ‘economic means’ for the satisfaction of needs, while the unrequited appropriation of the labor of others will be called the 'political means'."
It actually depends on how you define socialism. Is welfare socialism? Consider
https://en.wikipedia.org/wiki/State_...ism_(Germany):
So an anti-socialist conservative instituted the first welfare system to stave off rising socialism in Germany in 1883, and the socialists stole his thunder.
I don't consider social programs socialist. Socialism is central planning of the economy where the government owns and runs industry and companies, like in communist Russia, communist China though they are moving toward state capitalism.
With socialism there is no pudding. The government thinks you prefer sardines and crackers.