One of the most popular critiques of effective altruism is that it is insufficiently open to large-scale systematic change. EAs will often respond to this by saying that there is nothing about the EA philosophy that is principally tied to supporting any economic system: Yes, most EAs are not revolutionary, but they might be one day! If there is convincing evidence for it, EA principles would simply demand of us that we become communists. It's just that that kind of evidence does not exist right now.
There is a clear tension here. On the one hand, it makes sense to err on the side of caution if we are deeply uncertain about the consequences of radical systematic change. Making such changes, especially without a detailed plan, could make the world a much much worse place. On the other hand, it seems that evidence for such a detailed plan is especially difficult to collect. I take it that most of you are at least open to lending some credence to the idea that the most just world we can imagine is not a capitalist one, or at least involves systems that look entirely different from the ones we operate in today. But if you truly believe, for example, that a classless society is the most just one, then you will not be convinced by some empirical study that seems to imply reducing class elements from economic interactions make all of us worse off. Your ideal society is so far off the status quo, that the empirical study cannot do justice to the changes you envision. But the other side of this coin is that, if only types of evidence at the top of the EA hierarchy of evidence are convincing, radical critiques of the status quo become mute.
And so I ask, dear friends, what kind of evidence would change your mind?
* Note: I say capitalism, but I guess I mean to say 'any system involving power structures for which there is a lot of attention on the left but almost no attention within EA'. It it just that openness to anticapitalism is the first thing that comes up in conversations I have with leftists who are unsympathetic to EA.
Edit: I guess most of the dislikes are coming from people who think this posts repeats the early systematic critique of EA. If this is the case, can you please point me to arguments from elsewhere that directly address the questions I raise here? The usual response I find online is the one in my post: It's just that that kind of evidence does not exist right now.
I think you're absolutely right about the evidence strongly supporting capitalism being less than ideal from a utilitarian perspective but also not supporting any putative drop in replacement system (and providing a lot of evidence that revolutions are a terrible idea in most places). As Churchill once said of Parliamentary democracy, it's the worst system apart from all the others that have been tried.
But I would think for critics of capitalism there are plenty of feasible options short of completely eliminating it. The Nordic model is (for better and for worse) notably less capitalistic than the United States model, for example. Many well established problems with market economies like externalities and lack of public goods (and utilitarian issues like wealth inequality) are feasibly solvable to a much greater extent than under the present system, and seem to fall into the category of "system[s] involving power structures for which there is a lot of attention on the left but almost no attention within EA"
I think there are other reasons why EA doesn't get involved (there is has a lot of attention as a problem already, achieving change is extremely difficult and costly, and given uncertainty and different starting premises EAs are highly unlikely to agree with each other. though the latter hasn't stopped them exploring other fields). I'm not sure getting more actively involved in the politics of economic distribution would actually improve EA as a movement, pursue the 'right' goals or achieve any success though.