This isn’t directed just at you because I have heard many people (even on this thread) say something similar. I think this is where the disconnect is happening between posters.
People will say “hitting” a child is not okay, “but spanking, swatting, popping, etc is fine”. Obviously to you and some others there is a distinction between those words/actions, but to me (and some others here) ALL of those are technically “hitting”. If I swing my arm and my hand makes contact with you— regardless of how hard, regardless of what part of your body, regardless of my emotions or intention— I would say that I hit you. I can smack you on the arm by accident, pop you on the butt in a joking manner, or slap you across the face because I’m angry. All of those actions still fall under the term “hit” to me.
And, I’m saying this as someone who has spanked her kids in the past. It may have been a pop on the butt or leg, but it was still hitting.