Ouch, you suffered the misfortune of seeing the darkest WD episode as your first.
The older sister was portrayed as deeply disturbed leading up to this episode.
Many characters in the WD suffer from ptsd, which is completely believable, considering what they are experiencing.
You said, “That human race doesn’t deserve to survive.”
If you take in more of the show, you may change your mind, because the reason most people watch the show — even more so than to see the gory violence — is to see many decent and strong characters survive.
He/She is more content in dropping in and leaving comments than he/she is in getting involved with a TV program he/she could care less about...........
It's called "Attention deficit syndrome".........meaning, an uncontrolled desire to attract attention to one's self via the internet.......