Ignorance is the reason we are disunited in this world, yes. But it disguises itself in form of religion, tribalism, sectarianism and anything that differentiates one group from the other. We are all the same in this world. We are all gifted and unique, unique in the sense that our area of specialization vary, yet we are one people. Perspective also matters because i may be seeing 9 while you're seeing 6. From another angle, another person will be seeing it as 1. meanwhile, we are looking at the same figure. Respect other people's perspective instead of arguing over things that can't be changed!