bein_hasdorim, what’s your source for asserting that the name Isabel (and variants) is derived from Jezebel? As you noted, Jezebel has become a widely used (across many cultures) metaphor for a wicked woman. Yet Isabella was the name of several Christian queens, including Isabelle of Castille. And according to the Social Security Administration, Isabella was the most popular name for baby girls this year in the US. It’s unlikely that Isabella would be used througout history, and so popular today, if it were derived from Jezebel.
I’ve seen multiple explanations for the origin of Isabel, but none that cite Jezebel.