Does morality define us, or do we define it??

Morality is arbitrary to time, meaning that with time morality changes. Not so long ago in the United States, interracial relationships were immoral. I hate morality and I would rather get rid of it, because every culture has a different set of morals that conflict with one another. For example I think religious indoctrination of children is an immoral practice, while some christian some where might think the opposite. I say Instead of acting on morality, we should just act with human decency. We as a society make up this moral code, and then we let it define us. I believe people forget that we made up this moral code that we live by and end up letting this stupid moral code define who we are. Morality is a load of bull shit. Lets get rid of it.