It's important to remember that even under a Marxist reading of history that capitalism was good/progressive for its time and that it was an essential stage of human development. Iirc he wrote specifically how it had a much better ability to unleash productive forces than feudalism and also allowed for more freedom than feudalism.
This isn't to say it doesn't have contradictions and drawbacks, of course, or even that it shouldn't be replaced currently. It's just to say that hostile responses like "what are some good things capitalism has done?" are ahistorical/unproductive even under a Marxist lense.