The classic issues that I am aware of are:
- Those in power have too much power and cannot be deposed democratically. As such they will assuredly become corrupt.
- 'from each according to their ability, to each according to their need' means that people aren't incentivized to strive and will be lazy and won't invent and innovate.
This page https://opensocialism.com/open-socialism covers these two points.
Are there other classical issues I am missing? Is there any literature you would recommend for this?
Thanks