I just rewatched the movie again, and caps shield tosses, bashes and a kick to Thanos face didn't even make Thanos flinch.
Once again, whenever he performs the same feats while holding the hammer, Thanos is sent sliding backwards and his moment thrown to the point he has to regain his balance.
There is an absolute clear striking amp Cap receives. It's undeniable. Compare the kick to the face and the Worthy knee to the chest.
Unless if you lot are trying to say that Steve is strong enough to knee Thanos and send him sliding backwards.