The same reason some people watch car crashes, gina.
I enjoyed the first one, with Timothy Spall, so I was looking forward to this. Couldn't believe how bad the first episode of this series was. Then watched every week saying, 'This can't get any worse, can it?' But, imo, it consistently plumbed new depths.
Remember, this is a place where people give opinions. Seems I'm 'out-voted' on this one but it would be a strange, ABless world if everyone held/espoused the same views on everything. ;o)