I suspect there are more women who would reject you based on your taste in music, your haircut, or the colour of your t-shirt than those who would reject you based on your dick size. Women (and other guys by the way) know they can use it as a weapon because they know a lot of guys are insecure about it. So rise above it.
Women can usually be more choosy about their sexual partners than most guys because they usually get a lot more offers than guys do. I like the idea of being choosy, but I'm a bit weak and don't often turn people down. I have turned women down though. Because of their character, because I just wasn't attracted to them, because I just wasn't in the mood, or for god knows what other reasons. Women kind of do that too.
I promise you that you can make yourself the sort of offer that most women would be reluctant to reject, without ever caring about your dick size.
And I promise you that even if you were Brad Pitt an ha a 10" cock, you'd still get rejected by plenty of women.
And I promise you that you can give her the orgasm of her life that'll have her wanting to marry you without her even seeing your cock.
Use some common sense. Women aren't *that* different to men, they're still people, individuals with their own tastes, opinions, pressures, insecurities blah blah.
Oh, and I hate big tits. Look how crazy some women get about that! Don't fall into that world of insecurity.