I read it.
And it seems that there are two disparate views here.
If the only way for Evolution to work is for you to change the rules then someone is grasping at straws.
Evolutionary change has always been a single deviation. Introducing herd dynamics only emphasises the “problem” of giving birth to a creature who is incompatible with it’s parent. In fact it works against what you are trying to prove, not promotes it.
It all boils down to “crossing” the species divide. And nobody here has offered the least proof that it is physiologically possible. All I hear is Mathematics and rhetoric.
Richard