You are really confused and deluded. WA is quarelling with NCAA because the NCAA don't comply with anti-doping measures and you dream up a scenario where NCAA is clean and the Europeans in the professional testing pools get away with things?
And how stupid would the European countries be? Germany has produced *one* Klosterhalfen in half a century, Why don't we get one every couple of years if it's so easy to dope up 20 year olds and get away with it? (or at least another one in France or Spain or Hungary)
Whereas in the US we got suddenly within 3-4 years half a dozen women that easily beat most of the 5000m times ran by US women until a few years ago. And often after being below international level in college but having great breakthroughs at 23-24. Certainly far more credible than developments of European athletes...
10 of 15 top 5k US women's times were run in the last 4 years.
7 of the top 14 US women's 1500m times were run in the last 4 years.
Nothing close to that is visible in Europe. So not only are the European clubs doping up their teens, they are so bad at it, that all they have to show for it is one Muir, one Klosterhalfen and one Batocletti (not really in their league).
This is simply ridiculous.