Whenever we talk morality/ethics I always get perturbed by the number of people who are, even if only on an argumentative level, either looking for a loophole to exploit to be a total psychopath and/or assume other people are doing the same.
Humans are social creatures who want and need to interact with each other, but we have different, sometimes conflicting, individual wants, needs, and desires.
We are unhappy when we don't get the things we want/need.
But sometimes the easiest, simpliest, most obvious way to get what we want/need causes unhappiness in other people.
Looking at the overall situation and going "How can we maximize personal happiness at least without sacrificing, ideally while also improving, overall group happiness?" is the only morality/ethics I feel is valid.
//Note. I use the term "happiness" as shorthand, but this refers to a broad range of positive human emotions.//