There has always been the same contempt for Jews among the majority population in the states which comprised the Confederacy, just as in the states of the northern Union.
In my opinion, and based on my personal experience, this prejudice continues to the present day, and its basis is found in the New Testament Gospel teachings. (no disrepect intended to our Christian members).
It is also true that Jews were active in the Confederacy at the highest executive level, and were "tolerated" as well as extended a certain level of begrudged "acceptance".
President of the C.S.A. Jefferson Davis absolutely forbade anyone to disparage the Jewish heritage or faith of Attorney General Judah Benjamin.
The Jew in the Deep South, while more often than not despised, is praised for stubbornly refusing to abandon their heritage and faith.
Southerners have always valued above anything else the traditions, heritage, and faith of their ancestors.
Today's Klan bears no kinship to the original organization founded during the aftermath of the Civil War by Confederate General Nathan Bedford Forrest.
Interesting footnote: during the orignal Klan's heyday, approximately 500,000 "Night Riders" on horseback rode every night across the southlands to stop the overreaching policies of the Union "Restoration" from destroying the white civilization. During that time, whites were forbidden from voting, and Washington was attempting to create a new "African" south; creating puppet negro governments and giving plantation lands to negroes. Washington's policies failed; if for no other reason than the negroes were incapable of running a civilization.