#3 - Even if it were true that female characters are "always" boring, I don't see how that should lower your opinion of actual women. If anything, I consider poorly-written female characters, particularly those who exist just as love interests for the protagonist, or who are seemingly considered unimportant by the writers, as an affront against women.

And I totally agree with commenters above who have said that female characters don't have to have stereotypically 'masculine' traits to be strong or interesting.