There are so many female formula one drivers. It's just flooded with them.
To say females are stereotypically bad drivers is not saying every single female is a bad driver. Just that, statistically, more are than are not. So don't take it as an attack on you personally. Until someone sees you drive, they can't make a determination. They can just make educated assumptions.
EDIT: I don't think any female on this forum is what I would call typical lol.