I really don't know. In my experience, it can about private property when talking about housing, it is about markets when talking salaries and work conditions, and it's just about having no idea of what capitalism even is and just vaguely pointing at economics the vast majority of the time.
"Capitalism" can be safely replaced with "the illuminati" or "Chem trails" in the vast majority of complaints I hear and read and the message would ultimately make as much sense. There's not a lot of how or why capitalism doesn't work, but by God there sure is a lot of what it seemingly does wrong.
Nearly all of the poor countries on earth are capitalist. World war 1 was a war of capitalist reorganization, Fascism was a capitalist economic system, therefore WW2 was initiated by capitalist nations. Nearly all wars being fought today are all fought by capitalists on both sides of the conflict. The poorest countries on earth are capitalists. Drug cartels are organization of drug manufacturing and transporting capitalists. Capitalist nations are proven to be the most corrupt countries on earth.
Capitalism has a vested interest in making nations poor for the sake of maximizing profits in resource extraction. Capitalism has waged more war and caused more destruction than any system before it and its only been around for ~400 years.
You really want me to believe that the system that makes money from doing heinous shit is good?
Look into the primary sources behind the things you believe to be true about communism. Many, many are very shaky and were just "cold" war propaganda pieces. I've done exactly that to come to my conclusions.
What I know to be communism, through research, and reading of primary sources, is just the natural conclusion of the democratization of society. People controlling the production they need through councils that they themselves organize into a peoples state.
"Fascism was a capitalist economic system" or "Capitalism has waged more war and caused more destruction than any system before" are utterly ridiculous, evidently false statements. The only way you can ever say these things with a straight face is if you don't have the least idea of what capitalism even is.