Nothing could be further from Dawkins' intention or from the truth. There is a genetic, universal human nature , but because the environment is so important, human behavior varies infinitely. Our joke makes a serious point. If people simply seek pleasure and avoid pain, the outcome is unlikely to be pretty. Simply going with the flow often leads to obesity, bankruptcy, and unfulfilling relationships.
Genes build organisms to foster their goals and care nothing for happiness, justice, and peace.
In the Australian social spider, for example, the power of genetic interests is clear. After giving birth to about a hundred hungry spiderlings, Mom's body literally liquefies into a pile of mushy flesh. The babies then completely consume the gooey mess and begin life with some real home cooking in their bellies. Genes are selfish, powerful, and pervasive. Returning, as I often do, to my Marine memories, I recall a day in tank school at Fort Knox when a sergeant threw my entire bed out the third-floor window because a fold was the wrong size.