We are definitely created equally, but the world does not treat people equally or give people equal rights and resources. If one doesn't believe that humans are equal, then you must believe that some people are superior to others. That is bordering on racism, sexism, and other dangerous territory when you believe that one group is inferior or superior to the others. Equal does not mean the same.
Some groups have the law on their side. Some groups have taken advantage of other groups. Some groups have stolen from others, and the list goes on. But think about the moment of conception and during the infant years, babies are all the same until they enter the world and their gender, race, location, etc give them an advantage or