A lot of people who vote for Die Linke might either be too young to really have experienced the GDR in full bloom, or are compelled by actual arguments, of which they occasionally feign a few good ones, as politicians usually do.

BTW: I met a lot of people who'd been incarcerated mostly for their political motivation, but I've never met anyone who was murdered. Although I see how that might be difficult, I haven't even as much as heard about it. So, either the Secret Police really kept it secret or you are being overly dramatic.