For mudbloods, it’s a little more complicated. Most mudbloods are treated little better than animals. Officially, you’re not supposed to abuse or kill us, but a pureblood would rarely get in trouble for it. It’s fairly easy to acquire a mudblood as chattel for labour, and of course, we still aren’t allowed wands for any purpose. We’re also only allowed to marry half-bloods—that’s only half-bloods. The Dark Lord doesn’t want us perpetuating our dirty blood with each other. And more than that, there are a number of offences for which the penalty for mudbloods includes sterilisation. In practice, they include violent crimes, conspiracy, insurrection, displeasing any well-connected pureblood, and having below-average intelligence. The Dark Lord doesn’t want such undesirables perpetuating their dirty blood at all.