Answer: Not fully.
Explanation: Even in communist societies, where the concept is for everyone to have the same thing, there is tension between different groups for inherent traits. It depends on your definition of "differences". If there were a group of people who knew nothing of racism, sexism, or any other -ism, it still wouldn't be possible for a society to be entirely accepting of others' differences. For example, maybe someone doesn't like someone else because of the pitch of their voice or a certain personality trait. Those are differences that you may not accept. Other differences could be actions some view as unforgivable, such as theft. In conclusion, I don't believe it's possible to have a society that fully accepts one another's differences. It is possible to have one that gets along together well, or even claims to love each other in all ways, but there will always be conflict between person to person and person to self. It's just life.
