So you admit that you don't have an accurate definition. That's a shame.
This is the exact same stupid argument that conservatives use when the answer to "what is a woman" is "it's complicated". Some things don't have neat, concise, 1 sentence definitions
The rest of your post is not really a response to anything I wrote. I have read plenty of history books. And you saying capitalists don't take investment risk is just baffling tbh