I dated a Jewish guy when I was in HS in our small, southern town. Never any problems. He still lives here and is a prominent psychologist. His mom was a sweetheart.
I heard of one Jewish doctor around Atlanta that was a leader in the Methodist Youth Fellowship in his small south Georgia town. His father owned the only store in town, and (if I have my small towns right) it was an hour drive to the nearest Jewish temple for worship on holy days since they were the only Jewish family in town.
Yankees try to project their bias onto Southerners, but it doesn’t work.
Same way with Indians - kids that had some Cherokee blood in them bragged about it at school.