After the Martin Luther King Jr. piece we went over, Mrs.Cassidy pointed out that DNA doesn't determine ethnicity, and ethnicity is a big part of equality. I found this article on it:
http://www.genebase.com/support/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=378

Many people think their race is superior.  Equality seems like such an easy concept but it's so hard to be enforced. Can we all just be born equal? Is it that easy? On the outside yeah, but we're conditioned to view certain groups of people certain ways. We all have different views religiously and that really is a basis for so many things. Atheists are looked at as sinners, just like homosexuals are. We're also conditioned to see women as the weaker sex. And certain racial groups to be less important/more important. And we as children see these people being shunned and made to look like outkasts and like they are weak. We adapt those thoughts and beliefs. Imagine everyone just cleared their heads and started new, didn't tell anyone any info about their religion, heritage, sexual preference, income, etc, and we had to determine if we liked them on what really matters, their interests, and how nice they are and not the material things. We're all humans. We all have out own opinions and goals and obviously we're not always going to like everyone we meet. But that doesn't mean we have to judge them, and it doesn't mean we have to treat them like we're superior. It really is a pride thing and envy thing. And I'm not sure how big it is around the world but I know it's bad in America. Martin Luther king jr is right when he said we're all born equal. Even though we're all different, our biological makeup isn't all that different. We all have potential and we can all do big things. We should open our eyes and see that were not all that different. We should stop judging people and start seeing that we're all just human.