Does she speak Hebrew? I would be puzzled by a language I don't understand.
Do you speak Arabic?
You can have good and bad opinion and criticism about anything, even your people and yourself. Expressing your opinion should be normal and if she has higher education she should be familiar with this concept too (she can agree with that or not ofc).
But you shouldn't degrade your kind just like that, because she might think you did it because you think that's what she wants to hear.
Relationships aren't decided by one conversation, you can build good terms with a coworker. Acts matter more than words ofc, and having consistency between your words and actions matters a lot.
I suggest treating her as an individual and not a generic part of a generalized group, while not disrespecting her folk would be a good step.