This is furthest thing from changing the subject. This is the subject.
This is the second step.
The first step is normalizing the idea that people are dangerous on account of some status.
The second step is taking away their rights.
We get to such calls to take away the rights of pregnant people only after a carceral war on drugs normalized—indeed firmly entrenched—an idea that those living with addiction are dangerous.
We get to the second by way of the first.