You always focus on push, even after I post there is more to taijiquan than push. You give scenarios that appear to be based on someone holding their arm out their waiting for you to grab, and if you do grab, resisting and not going with the flow and changing it to something else.
There is more than one way to push and it is not all a school yard push. ALso push hands is NOT the way you fight in taijiquan, it is a training tool. This, by the way, is explained in Mark Cheng's videos, if you bothered to watch them.
You and I have been down this road multiple times in the past and I really do not want to rehash it with you again. You are saying IF I do 'A' you do 'B', but there is no set way that I will do 'A', angle can be different, energy differnet, force differnt. Also you should know that a palm strike is not a push. Also how I respond to what you do, may not be what you expect