One thing I noticed is that the author on the anarchocommunist link talked about renewable energy like it was already here and free or something. Also talked about encouraging small businesses at one point when commy/leftist policies never favor small businesses.
Citation needed? It all depends on the regime I would think.
It's difficult to make the argument that capitalism favors small business.
The agricultural case above is particularly curious because farming has massive economies of scale and has always been top-heavy and only continues to trend that way despite US having an actual agricultural policy (remarkable because in the US it it rare to have any industrial policy whatsoever) propping up small farms. This policy is inherently socialist in nature, under pure capitalism the sector would undergo increasing consolidation I think. I think the arguments that socialism is anti small business is wrong. Capitalism is anti small business where small business is inefficient. Command economies do what they think is best, sometimes efficiently and sometimes not. And if you look at modern blended economies who aren't afraid to put their fingers on the scales, some of them are very small business friendly, with small shops everywhere to an extent you don't see in the US. In the US, the bakery gets bought out to put in a McDonald's, the brewery gets bought out by InBev so they can brew it 2 states over in the megabrewery, the local radio station and newspaper get bought out by clear channel and the regional leftyrag, and your local doctor is forced to join the big hospital complex. This is practically the story of the postwar neo liberal economy, a result of specific policies that are ostensibly capitalistic, and, it's hard to imagine you haven't noticed, and these things have not happened in all places. It's only the younger "eat local" crowd who are starting to decide this sucks and want to do things more like the way their grandparents generation did them as a matter of course. Except it's very hard because the businesses are all gone and the infrastructure that supported it also.
Now, if you are like me, and willing to be a true neoliberal apostate, you make the correct interpretation that the US ALSO has its fingers on the scales, but those fingers value wall street and megabusiness above all else. We are not living in an anarcho capitalist economy but one built by specific postwar economic policies. If the policies were different, we would be no more or less free but might have drastically different and better outcomes. Unfortunately, those who propose changing those policies are often branded "libs" despite the fact that the policies are often bad, wheres conservativism is weaponized by convincing the conservatives that the policy was handed down by Jesus from mount Sinai, even when that's obviously not true under the briefest introspection. And thus our system continues to roll along and morph in directions that favor those who can afford to buy influence in Washington.