There is no doubt that if a fast and strong man and woman reproduce that it will usually produce good stock. One thing people forget is everyone has been slaves at one time or another. Every ethnicity has been slaves. Yes whites have since the Biblical Days and even in the that 1800's and 1900's they were. All races have. China will do what they need and maybe someday Russia will possibly if they rise up economically. If you build a program it can yield very good results but these things take money. China will prove what can be done in the
long term. I see them being a powerhouse in the future. So much talent to pick from.
All these things being said but the anti white stereotypes and lies are still not true. John Entine tried to say no white sprinter would ever go sub 10. We've had more than a handful and there will be many more. It's just hard with not a huge participation as whites focus on so many other sports, music, arts, scholastics, business, etc. etc. Where as the majority of blacks look at sports as their only chance. Things are changing however. I see a bright future for white men and women in the sprints. Young kids are starting to get their confidence back. A white man led the NFL in rushing and it wasn't even close. A white guy led the NBA in scoring and won the scoring title easily. There will be more Lemaitre types but I just hope they have the desire to get better as they age along with the right coaching.
One last thing. Just in America in the last few years we saw 2 white high school kids run wind legal times of 10.15! Then we had a white female sprinter go 11.00 flat. Things are changing and I see it growing with whites making the anti white skeptics look like fools.