Drawing the Color Line

Howard Zinn’s thesis in his chapter Drawing the Color Line, in his book A People’s History of the United States, is that the black slaves were treated harsher than any other slaves were by the Americans.
Zinn argues that blacks slaves were not treated the same way whites were treated. Hugh Davis, a white man had to be whipped for abusing himself because he laid with a African American woman. Another example of this is white servants ran away with an African American salve and were caught. While the white servants received slight punishments, the African American received 30 whips and was branded with the letter “R” for his master. Whites were said to be the more superior to African Americans. Whites were masters and African Americans were servants to them. If the slaves tried to form together the white slave owners would kill them in terrible ways such as hanging or burning.
Why didn’t the slaves unite together since at one point, half of the population was slaves? They could have easily taken over the whites and could have been free. They tried in small groups but it never worked and the white masters would destroy them before the slaves could do any extreme measure of destruction.
While reading this article I felt bad for the slaves. I am against slavery and think it was a terrible thing and is a terrible thing now. The way that the African Americans were shipped over like sardines in a can on a boat was awful to where it killed many of them and it lost them a lot of money since they could not sell them all. In a way it was a lose, lose situation there. I am glad slavery is over and have hopes it never comes back again.