Your assertion that spanking does not have the negative effects of beating is directly contradicted by the research.
You have provided another example of what I am talking about: For some reason, on the subject of spanking, the gratuitous assertions blossom, and the entire scientific method is explicitly rejected.
No it is not.
As was pointed out to you earlier, the authors of this garbage didn’t do ANY RESEARCH AT ALL.
They composed a position using other people’s research reinterpreted to mean what they desired it to mean.