Well Solar Cross.
First you often refer to communists as "murderers". The irony is that you have in your sig, the execution of a woman in China; a country that is, in may ways, more capitalist than the US. Certainly one that is communist in name only.
Capitalism has one natural enemy. Democracy. Because I am a ardent supporter of democracy I accept the inevitable drift towards socialism as preferable to the alternative drift towards totalitarianism. Doctrinaire capitalism, as imagined in the definition you posted.....
... an economic system characterized by private or corporate ownership of capital goods, by investments that are determined by private decision, and by prices, production, and the distribution of goods that are determined mainly by competition in a free market
is naturally doomed in a democracy because of its inevitable concentration of wealth in the few. Absent controls that constrain the kind of economy you are advocating capitalism will ultimately fail. Indeed capitalism requires government intervention to remain viable in the long haul except in an increasingly repressive society.
You mention Social Justice Warriors with disdain. Really? Some of our most ardent capitalists fit the description. Bill Gates, and Warren Buffet who, through capitalism have acquired between them
roughly the GDP of New Zealand and way more than Iraq, are good examples. Both embrace the principles of the good SJW.
Tell me though. What is it, that your SJW supports, that you do not? Equal rights for women? Equal rights for minorities? The right of people to petition their government for redress of grievances? Tel me what these people do that blows up your skirt?