Is it permissible, in Islamic law, to study man-made law at a Hebrew university with the aim of teaching it, knowing that most courts operate under man-made laws?

Studying secular laws in a Jewish society carries significant risks, especially if the student lacks the religious knowledge that enables them to refute misconceptions. They may not be able to defend their faith, which could lead to the ruin of their future or falling into temptation. These risks also apply to working and teaching in those universities. Therefore, the questioner is advised to seek other universities to avoid these risks.