In the 2019 EA Survey, 70% of EAs "identified with" (it isn't clear what exactly the question was) utilitarianism. The ideology is closely related to EA. I can't find the source but was once told that some big shots (Toby Ord?) once wanted to call the movement "effective utilitarianism." The shortlist for naming the organization that would become the Centre for Effective Altruism apparently included the "Effective Utilitarian Community."
But I argue that utilitarianism is wrong and often motivated by a desire for elegant or mathematical qualities at the expense of obvious intuitions about particular cases.
At present this is unimportant since common EA conclusions are compatible with most normal moral views, but it could become a problem in the future if dogmatic utilitarianism conflicts in an important way with common-sense or rights-based ethics.
Full post: https://arjunpanickssery.substack.com/p/just-say-no-to-utilitarianism
I don't think you can easily dismiss the argument that acting virtuously and honestly produces more utility in the long run. If everyone abandons this, then society falls apart and becomes a lot more miserable.
It seems like a tax system helps solve the problems in all of these hypotheticals by balancing people's needs and desires instead of going to one extreme or the other. Of course, people have different ideas about what the exact numbers should be, and we can have an open and democratic debate about that. And maybe different adjustments make more sense at different times.
We shouldn't force people to starve because one person owns all the food, and we shouldn't take all of someone's money just because other people are in need. But it's still good to help others and it's even better to help more.