I exist in a capitalist economy. I make a number on a spreadsheet a bit larger and then I go home and live a meaningful life using, in part, the money I've earned doing so. I'd be hard-pressed to do that under any other economic system that's ever been tried.
If you live in the modern developed world, you probably live in a mixed market economy that has incorporated many structures advocated by socialist critics of capitalism (in many places some straight out the Communist Manifesto), rather than an actually capitalist system.
And it's quite likely that, for those outside of the bourgeoisie—and even much of the petit bourgeoisie, as much as many critics of capitalism see them as class enemies—your ability to have a meaningful life outside of doing what is necessary to maintain your condition in the economic system is a direct result of the ways in which you do not live in a capitalist society.
