>>17775886
>The orange line: Y-DNA C/D
No evidence southern route did not have K. Australasians lack Tianyuan ancestry yet they still carry M and S.

>who likely entered this region via the Southeast Asian landmass, prior to 65–50kya.
Southern route doesn't date to 65-50kya see >>17774884
However Australasians in particular have deeper ancestry that is still undeterimnable.

>.A later “second layer”
Related to IUP ancestry in Tianyuan.

>So their East Eurasian comes from the same stock as modern East Asians.
East Asians are Tianyuan + Onge while ANS/ANE is Tianyuan + West Eurasian.