Another strawman, or perhaps a pure lack of comprehension. I didn't say any of that, but I said that I have never expressed doubts. It is you that "haven't been following rekrunner", despite your obsession.
The reasons for my lack of doubts should be obvious to those with basic knowledge of running history and high school biology.
In doping history, we often talk about East German women, Russian women, and Chinese women, but never East German men, Russian men, or Chinese men. Why is that? We often talk about how athletes like Caster Semenya, and how transsexual athletes impact the women's category, but not the men's. Why is that? One biological reason is that men already have large amounts of male hormones naturally, unlike women.
This applies to steroids and women, but would not apply to men, or to other drugs, like EPO.
The beauty of looking at alltime historical results is that it captures the end result of all doping combined. We don't need to know what individual athletes are doing, but we can look at whole populations, for signs of allegedly powerful and widespread effects. This is exactly the method used to support and sustain a belief that East Africans are doping with EPO. When we combine this what what little is known about doping (e.g. comparing Russia~100% versus Japan~0%), we can look for unnatural performance anomalies.