Your job in the second draft— one of them, anyway—is to make that something even more clear.

而你写第二稿时的任务——至少是任务之一，就是要让这“言之有物”的“物”更明确。

They were based on the idea that something about a person's essential biology made them deviant.

他们基于这样的想法，即一个人的基本生物学特性使他们变得越轨。