I know I've made a statement on it previously - I wish I could recall (or find) exactly what I said. But, this is exactly what it is - a group of women celebrating Star Wars - something that's been a historically male dominated fanbase. It's not a statement that's meant to be taken literally as much as showing that female's can also enjoy Star Wars. It's celebrating that girls can also enjoy Star Wars and meant to be fun.
These shirts appear to from the
Nike campaign with the same slogan - that doesn't mean that males cannot buy Nike.
No conspiracy theory needed that women are taking over Star Wars and/or the Force, although it's out there....