Then we disagree on this; people in general are less caring, less connected than in past generations. I've seen it in the years I've been teaching. I don't think spanking /not spanking is one of the key players in this change.
Eh, no; if you read the scientific studies themselves instead of just the pop-psychology articles, such studies tend to prove what they set out to prove. You know the phrase confirmation bias? I'm not motivated enough to look up any studies. But most people -- regardless of how they are disciplined as children -- are not violent later in life.