OP is sitting on a bluepill above the more generic bluepill.
The reason you can't be "just friends" with women at all is because women are not capable of friendship. White knights deny this because they want to smell the hair and hear the voices of the femoids they are "friends" with, they're never mates and women are never one of the boys for a reason.
I knew a woman who tried to be like this in high school and I was retarded enough to try to befriend her as well, we did speak often and one of her main gripes was that she felt very alone and like she had no friends. She basically said school friends didn't count as real friends and then kept saying a bunch of things didn't count until having a friend was some otherworldly abstract thing to her. She clearly had friends in the conventional sense of the word, but because she was trying to emulate a male behaviourally she felt an emptiness. What is friendship? Cameraderie, it's an exclusively male thing. Women who are friends talk shit about each other and buy shoes together instead.