You won’t find public shaming of boys who impregnate girls in the USA.
You will find public shaming of girls who are impregnated by boys or men in the USA.
It doesn’t matter if it’s in a church. Or a school. Or a courtroom. Or some other community space.
You believe and wish that boys get chastised equally to girls. They SHOULD. But what’s the evidence?
There _is_ plenty of evidence of girls being publicly shamed.