Why are christians so violent with their children?

My family (and most people I know) think that the way to “correct” and set boundaries with kids is to repeatedly hit them with belts or sticks until they cry or worse. The craziest part is that they say this is what god wants, parenting the way god intended or something. They TRULY think this is somehow beneficial to the kids?????? Just now some of them were talking about how ABSURD that our country has laws against child abuse and some woman said “Jesus needs to come back soon” implying that this world is lost cause “we can’t educate our kids anymore”. It truly dismays me, it’s crazy honestly I don’t even know how to cope with this feeling.