Correct. There is no absolute moral truth, because morality depends on values, and people do not value the same things to the same degrees. It’s called descriptive moral relativism. This is taken further in meta-ethical and normative moral relativism (neither of which I adopt). https://twitter.com/Real_Adam_A/status/1048567101739454464 …
Plus, the things society places value on changes over time and circumstances. Eg differing attitudes towards non-medical circumcision of male and females.