or, if you don't buy into the "they're all the same" arguments, at least beware of the arguments against utilitarianism https://en.wikipedia.org/wiki/Utilitarianism
>Writing in Asterisk, a magazine related to effective altruism, Ozy Brennan criticized Gebru's and Torres's grouping of different philosophies as if they were a "monolithic" movement. Brennan argues Torres has misunderstood these different philosophies, and has taken philosophical thought experiments out of context.[21] Similarly, Oliver Habryka of LessWrong has criticized the concept, saying: "I've never in my life met a cosmist; apparently I'm great friends with them. Apparently, I'm like in cahoots [with them]."
The people that coined TESCREAL seem to not really be related to rationalists, and seem to have coined a term for "those vaguely related ideas from people that do some stuff we consider wrong and we consider bad". "Evil people from San Francisco" could work just as well I think.
And wait, shouldn't I beware arguments for utilitarianism rather than against? If that's what you meant yeah I agree, especially pushed to the extreme it leads you in very weird places.
You should beware of bad utilitarian arguments though, which is where you often get the real "gotta break a few eggs to make an omelette" kind of arguments that justify all manners of atrocity in service of some narrow hypothetical future good.
Like when Marc Andreessen says we should consider anyone who would do something to slow down or regulate AI advancement murderers of future humans. Bad utilitarianism right there.
Proper utilitarians are concerned with the net difference between all positive and negative consequences of actions.
A few things wrong with that. First is there is no net happiness formula which utilitarians are proposing. Peter Singer has said more than once that he weights suffering far, far higher than happiness.
Second is that every ethical system has screw cases which make the system look messed up. "Do unto others..." it terrible if you are talking about masochists.
I meant that one should acquaint oneself with the criticisms of utilitarianism, if one wants to understand what it is people react to in rationalism and related communities.