why do early "church fathers" say nothing racial

[Nayto]

I actually consider us far more blessed in knowledge given that we have a much better understand of race and mixing of race than what our ancient ancestors had. One one hand they would never have dreamed of mixing with other races, but what about that borderline with 5% admixture? It was almost due to their ignorance -- and innocence -- that they were subverted.

Praise God for giving us the whole truth.

[Staropramen]

Excellent thread with a wealth of good information and insight!