Testosterone is not the end all be all of aggression . I know plenty of women that hop in mosh pits and would boot stomp a guy for looking at her wrong.
Asian culture(s) is a nationalistic and racist. They are brought up that way and will continue to be brought up that way(doesn't only happen in this culture, look at Ireland). Even when they immigrate to other countries (oldham england) riots ensue, asian triad gangs etc etc. Asians usually grasp technological advances and tinkering with current inventions incredibly quickly. Nobody knows why, its like white creativity(more inventions throughout time then any other culture) just a difference in brain chemisty, like we have amongst all races. Nobody understands the mind, they are barely breaking its surface. I know a few women that prefer asian guys to other races, course 2 of them are asian but I mean thats not the point. They must be doing something right.