Board Thread:Speculation House/@comment-97.117.77.25-20180117230750/@comment-4010415-20181123140644

Doesn't change the fact that Miles outright stated that Qrow is not Ruby's father, nor the fact that Monty stated that Ruby and Yang are half-sisters, which eliminates the possibility of Qrow being Ruby's father because he would have to also be Yang's father, which would mean he slept with his own sister.

So, since it is absolutely 100% confirmed canon that Qrow is not Ruby's father, there's not really much else to discuss in this thread.