> How is owning the fruits of your labour different from capitalism again?

Capitalists do not get money because of their labour. They get money because they own capital. An heir who inherits a large company can continue to receive his share of profits and dividends simply by being the "owner", even if he passes on the administrative work to others. If he has not worked, but consumes, he enjoys the fruits of the labor of others. The capitalist concentration of wealth in the hands of a few means that these few enjoy a quantity of fruits of labor that a person could never generate even if they worked for more than 100 years. So, obviously, capitalism has nothing to do with giving each person the fruits of their labor.

No, it has nothing to do with price of labor (although in socialism there is no labor market), and everything to do with removing subjugation of others due to ownership of private property.

In socialism, if you want other people to help you build the company, you have to do so on equal terms, by giving them equal stake in ownership. That doesn't mean you don't own fruits of your labor.