I read through it and in all honesty, what I'm gathering, is that it's common for people to go overboard. Either that or my family (father, myself, son) are some kind of insane statistical anomaly. Relationship down the line is fantastic, and son doesn't have outbursts and isn't violent.

Seems the underlying thing is that people use corporal punishment beyond a simple spank swat or hit on the butt. The things they speak about seem to be referring to beating, pulling hair, using sticks, paddles, etc. Even resulting in physical marks or hospitalization. Again, the line between spanking and beating is subjective. ALL research isn't showing I'm in the wrong. It's statistically showing that it has negative impacts overall, but this also, again, complies spanking into sticks, paddles, pulling hair, etc. together.

Ofc a child will be violent when you beat them with a stick or belt. A smack on the butt? Quick and effective. Hot sauce is spicy, therefore all sauces are spicy. Show me a study where they separate the difference.