True, but the OP has also described this using language like ‘torture’ for this experience, perceives hitting their stuffed toys as patently indicative of abuse for a child, considers it self-evidently creepy that a babysitter would be an older male, and has self-diagnosed PTSD.
The OP also feels a level of discomfort about enjoying spanking in sexual contexts, despite this being incredibly normal sexual behaviour.
There’s a lot to emotionally unpack here for the OP, and I think probably only a T is qualified to do that. But not all of the OP’s conclusions are realistic, and a child being able to intuit that a person is feeling sexually aroused, when detailed descriptions fit just as closely with serious physical abuse consistent with, say, a disciplinarian gone crazy? Labelling something as sexual abuse, rather than physical abuse, when to me that label is playing into the OP’s present-day issues? IMO hat isn’t helpful.
Spanking that has turned into physical abuse? Happens. It is almost uniformly humiliating for the child. There’s a difference here to me between minimising and keeping the language reflective of the scenario actually described by the OP (as opposed to how the OP feels about the scenario - get help from a professional, but get help for the right thing, you know?).