Not suitable for good ppl to live? You have gone too far here.

Ppl left 20 years ago? A lot of ppl here don't have to ask their parents to know that differnt kinds of ppl left China at that time. Some of those ppl I respect. As to how smart they are, we look around and we see them. Thank you very much.

Ppl from different backgrounds tend to think differently. That's normal. But don't be too assertive. It doesn't help to build up your logic or prove your conclusion.