Spanking is not wrong if done right for punishment. There's a difference between actual abuse and just spanking.
I was spanked with my dad's belt as a child and I'm glad he did spank me as I'm sure I would've wound up in prison if he hadn't.
He spanked me with that belt when I did wrong because he loved me. I didn't realize it at the time but that's why he spanked me with that belt because he wanted me to do good.