The dreamworld is full of contrary meanings so if you dream of people being mean to you, it can imply the opposite in waking life.
However, you should reflect to double check on the validity of dream interpretations. Consider if there are valid reasons for people to be mean to you. It can’t be possible that all people are mean or many people are mean. Do the environments have any factors in containing people who are mean?
If you think your behavior influenced the way people react with you, you might like to consider some changes. If you blame the environments for producing toxic culture in people, then think about changing the environment.