As I wrote in the opening. That’s exactly what we do all the time. It’s called case formulation. It’s called hypothesis testing. In this case it’s also common sense about human nature.
If anything, you should argue that it’s overgeneralization, over-extrapolation, or an argument from authority. Hell, if you involved the concept of non sequitur, it would be better.
It’s like you’re cobbling together words related to scientific rigor without understanding the concepts. A hypothesis is, by definition, based on incomplete data. If it wasn’t, it would just be called an observation. So you make a hypothesis, see how it fits the data, and maybe even see how well it predicts the future.
You literally imagine something that isn't in this text and start theroritizing based on this.