It's actually easier for a shorter person to shoot a ball up to the basket softly than it is a tall person. If a 7' guy and a 6' guy shoot a ball with the exact same arch, the taller guy's ball would be coming down slightly faster, and therefore harder, than the shorter guy. 2 reasons girls have better percentages. One is the smaller ball and 2 is slower recovery after a pass leading to more open shots. Girls are better than guys at some things, but sports (or anything physical or athletic) is not one of them.
As far as your pool analogy goes, if the pockets were slightly bigger I would make a decently higher percentage of shots. It wouldn't take a much bigger pocket at all to increase my makes by 10%
Are you really arguing that women are actually more talented at shooting a basketball than men? Or are you just trying to say they are equal?