Whats the point? ALL of the roles done by different races can be easily done by humans as well. Plus half of fantasy universes lack non-human races, and they are still bloody awesome. As long as we have magic, its cool.
Actually, after your post I did think that perhaps Greenskins would be a good additional race and wanted to tell you that. But then I saw your "I quit" message, I decided otherwise.
Either way, I am really disappointed in you. I thought you would do more to actually make DP be like what you think it would be better. Instead you just left.