Comparing Serbia and Croatia when it comes to antisemitism is pathetic.
That article says there was some economic discrimination against Jews in 19th century Serbia. To be honest, that could be true. But, while in every other country in Europe Jews were murdered, beaten, robbed and forcibly converted, there was none of that in Serbia. Not even our Nazi collaborators killed Jews. Camps in Serbia were run totally by Germans.
On the other hand, Croats had Jasenovac. Read about it.