"Since effective altruism is committed to whatever would maximise the social good, it might for example turn out to support anti-capitalist revolution." (Srinivasan 2015)
In this peer-reviewed article for Moral Philosophy and Politics, I explore this suggestion. This connects with my EA forum piece 'Why not socialism?' but is more thorough and more focused on longtermism in particular.
ABSTRACT: Capitalism is defined as the economic structure in which decisions over production are largely made by or on behalf of individuals in virtue of their private property ownership, subject to the incentives and constraints of market competition. In this paper, I will argue that considerations of long-term welfare, such as those developed by Greaves and MacAskill (2021), support anticapitalism in a weak sense (reducing the extent to which the economy is capitalistic) and perhaps support anticapitalism in a stronger sense (establishing an alternative economic structure in which capitalism is not predominant). I hope to encourage longtermists to give anticapitalism serious consideration, and to encourage anticapitalists to pursue criticisms of capitalism’s efficiency as well as its injustices.
The track record of anticapitalist advocacy seems quite poor. See this free book: Socialism: The failed idea that never dies
If you're doing anticapitalist advocacy for EA reasons, I think you need a really clear understanding of why such advocacy has caused so much misery in the past, and how your advocacy will avoid those traps.
I'd say what's needed is not anticapitalist advocacy, so much as small-scale prototyping of alternative economic systems that have strong theoretical arguments for how they will align incentives better, and scale way past Dunbar's number.
You don't need a full replacement for capitalism to test ideas and see results. For example, central planning often fails due to corruption. A well-designed alternative system will probably need a solution for corruption. And such a solution could be usefully applied to an ordinary capitalist democracy.
I concede that AI companies are behaving in a harmful way, but I doubt that anticapitalist advocacy is a particularly tractable way to address that, at least in the short term.