I think there’s lots of specific internal reasons why people make bad choices: sometimes it’s just pure selfishness of sadism.
But as for why some people are delusional, selfish, sadistic. As for why some people “succumb to evolved default behaviors like anger, instead of using their freedom of thought.” I’m not really seeing an alternate explanation here other than some people where unlucky enough to have genes and environment that built a brain that followed the laws of physics until it they did something bad. And from an internal perspective, maybe the people who did good things had a self modification step where the environment that is their brain modified their brain to have better intentions. But that doesn’t really matter from the perspective of judging someone because all the factors that made a brain that would do self-modification in the first place were outside of that persons control.
And that doesn’t mean that you shouldn’t punish people where it will change their behaviour or act as a deterrent, or keep others safe.
But does mean that there is no justice in retributive punishment. And it means theirs no point in hating people and wanting them to suffer. And it means that if you have infinite energy and resurrect Hitler then you should give him paradise rather than punishment.
“Suffering is a mainly measure, rather than the target metric.”
What is the metric? What could be more important than reducing suffering and increasing happiness? Things are only bad if they cause suffering or reduce happiness, and only good if they increase happiness or decrease suffering.
“Either what you are doing was fine before, or you did not hereby make it fine.”
The bad things we do to animals (cages, slaughter, etc) are bad because it causes them suffering. If we find a way to prevent them from suffering, these bad things are no longer bad.
“but expect it to by default go very badly and see no way to coordinate for a better outcome.”
I think your point could be better made with specific examples of the things that could go wrong with this technology.
It’s worth noting that the woman with the FAAH-OUT mutation is a perfectly functional human, she’s just very happy and doesn’t have to deal with the unnecessary suffering that our brains inflict on us on a daily basis.
The problem with cocaine isn’t that it makes you happy. It’s the cycle of tolerance, withdrawal and addiction that causes the problem. Since wanting and liking are separate systems in the brain, there’s no reason, in theory, why you couldn’t have something that brings lasting happiness and reduction of suffering without the downsides.