I’ve always found this bumper sticker and that claim to be rather disconcerting. While, I was going to delve into my feelings on why this is so, I found that someone has already done it.
Side Note: Black People Love Us
Reverend Ken Collins debunks the Jesus was a carpenter myth using scriptural evidences from the Bible to say it is more likely that Jesus was a rabbi.
I don’t remember this idea as Jesus being Jewish or being a carpenter ever really being emphasized in Sunday school, Bible camp, or church in my youth.