>>5655
All systems are the correct system when viewed from the inside. Some people use other systems, founded on other arbitrary fundamental principles.
I'm sure you were already aware that the prototypical rationalist ethical system is less discriminate utilitarianism. Are you complaining about that, or do you genuinely not understand how effective altruism is a result of that?
You can still practice effective altruism within your system, by finding the most efficient way to help people sufficiently similar to you.