I have male and female friends, however, one of my best friends is a man. There have been females that I have cut off for underhanded things they have done to me or if I found their motives to be suspicious or self-serving, but no, I do not consider all of my "sisters" in that same vein. I meet each person as an individual, and I will determine my friendship with you based on that.
Women do tend to be more competitive with other women though. Some make you feel like they are scoring you from head to toe. From your clothes to your makeup, your shoes, to the car you're driving. They will talk about you badly and then hit you with the "Hey, girl" when you are walking up to them. I am guilty of having done this before. I am glad that I surrounded myself a few years ago with women of different ages, who knew of actual topics to talk about and who had activities outside of the mall or searching for a new man. These things, make friendships with women more enjoyable and thriving for me.