This comes up a lot as a topic- I'll try and not bang my head on the desk LOL
I'm not in AA but I have read the Big Book and while I didn't agree with everything I read either, personally I got a lot out of it.
There are a lot of books that are important to me that are written in the language of another time - the King James Bible, Shakespeare, Chaucer, Dickens...I still find value in them.
I wouldn't let my reservations blind me to the overall value of the book, especially reservations about things being 'outdated'.
That being said, if you think AA is not for you, there's a myriad of other recovery choices that may be more to your liking
D