I agree with Ray, it is probably quite important to skin off all political meaning of capitalism, to keep a clear view of what it technically is.
It is the treatment of all things as capital, as we do to represent all things as financial balances.
In the case of work, or energy, we even capitalise time, which results in a misuse of money, enabling trickery around debt, resulting in slavery, and locking us into the vicious cycle of perpetual extraction of resources from our planet.
Why should it be possible for work not done yet, to be equated with work done? They are obviously not the same, and yet they have the same numerical representation as capital. That, is a trick.
Taken to the extreme, that trick is what now makes it possible for us to take something that took millions of years of work to create, and burn it in an engine, to get us down to the shops, for the price of a dollar or two, or even just a few cents.
See the problem?
The solution comes along with solar power, the complete, honest adoption of which requires that we ditch capitalism.
With solar power, we need to start equating money with energy flow, rather than energy stored.
Mathematically, and technically, we need to price the rate of change of energy, and work done, rather than any static values of them.

The funny thing is, we can see this trick instantly when we are uneducated children, we even call it out (Greta), but it gets conditioned out of us by “education”.

Hence the reason why all the famous figures who thought about it, made the same fundamental errors, regardless of political affiliation.