I didn't say that. Please read my
history of R1a and my post
5000 years of migrations from the Eurasian steppes to Europe. It explains all the migrations that have brought R1a to Eastern Europe. Turkic people (Huns, Alans, Avars, Khazars, Bulgars, Turks) were the last waves, only 500 years out of 5000 years of steppe migration. What I meant is that these Turkic people were R1a, but they are not responsible for all the R1a in Eastern Europe, just a part of it (impossible to determine the proportion at present).