Sure, but it doesn't fit into the traditional framework of "effective altruism". Collective efforts-based altruism is just very different in so many ways.
Why not? A collective, efforts-based, altruistic organization needs funding. If such a organization could demonstrate that their efforts lead to good outcomes (improve happiness, save lives), then effective altruists would donate to them.
A legitimate argument is that not everyone can make tons of money and donate because someone has to do the work. But there are plenty of "effective" organizations that are not yet overfunded.
The thing is that money without involvement is poison to collective movements, besides a certain point. Money and involvement is much better.
If all you want is to distribute, then sure. Collective movements aren't even the best at straight distribution, so someone trying to maximize the marginal utility of their dollar probably won't even donate. But collective action is generally not just about distribution, and moreso about fixing the structure of society to make distribution from rich donors unnecessary.
I agree that both money and involvement is necessary. But in our current world, nonprofits have a lack of money, not lack of involvement. Nonprofits talk all the time about how difficult it is to fundraise. And all the charities GiveWell recommends still have a lack of capital.
I think EA's would 100% want to fix the structure of society, if that method was resource efficient. If you believe that changing the structure of society is more resource efficient (in terms of time or money) than donating to AMF, GiveDirectly, or Deworm the World, please publish your analysis.
How much {money, time, etc.} would it take to convince a government or people to adopt a certain policy? What would the benefits of that policy be? How much pushback would you get from opponents? What are the risks? If you can successfully make an argument that changing a policy would be more resource efficient than current efficient charities, that would convince EAs to direct more resources to politics.
A legitimate argument is that not everyone can make tons of money and donate because someone has to do the work. But there are plenty of "effective" organizations that are not yet overfunded.