I have a unique insight on this. My uncle is a deranged Trump guy and posted one of those memes you're talking about, where it was like, "This is what happens when you don't beat your kids!"
I reached out to him, and I asked if he beat his kids (my cousins), and he became furious at me for suggesting he abuses his kids. He even got my aunt to yell at me for suggesting the same.
So, basically, they think other people's kids should be beaten.