I believe that, for example, if I wanted to open a bookshop, I should be able to. Or that if I wanted to rent a couple of 3D printers and sell widgets, that I should be able to. Or if I wanted to hire some dude on fiverr to write some music to my screenplay, I should be able to. This is capitalism. Do you disagree?

This isn’t really capitalism, this is production/commerce. This is what capitalists (people who own capital) tell you capitalism is. Capitalism isn’t you buying a tool and using it. It’s buying the 3D printer, paying people to design and build widgets, paying people to sell the widgets, then taking most of the money for yourself. You might say you make and sell widgets for a living, but you don’t. You own a 3D printer for a living, and exploit the people who make widgets for a living.

You can hate capitalism and still make stuff. Anticapitalists usually aren’t interested in taking away your 3D printer. State Communism isn’t the only alternative, and most leftists hate that idea just as much. Some alternatives include worker coops and mutual aid.

I hate that I can work (with others) to build a company from the ground up and have nothing to show for it, because the owner is using us to fund his lifestyle. I hate that landlords can buy up all the homes, driving up the cost to the point no one can afford one, then rent them out and sit on their ass while I pay their mortgage. That’s capitalism. People profiting off of ownership. It inevitably ends with some people owning almost everything, and the majority owning nothing.