Again, your female instructors who were no good: was it because they were female, or because of other factors? Simply question
Consider: would you find it harder to notice a poor instructor if you had a better rapport with him over the poor female instructor...or did the female instructor push you harder than the male instructor resulting in your flight being less successful in your mind even if you learnt more...
I'm not saying you didn't have poor female instructors (from what is presumably a statistically insignificant pool), but are you sure you can disentangle all these factors and assess the instructor objectively...
...as a student and not an instructor yourself at the time...