The expression "all hat, no cattle" (or horse) is a cowboy or rancher metaphor that can be applied to anyone, male or female. Your substitution of "skirt" implies that Royal's only argument lies in exploiting her femininity (charm, good looks, etc).
If that's what you mean, then you should argue it properly. Or stop making allusions of this kind.
Yes you can say that that looks and posturing are not enough to make a good president.
It has nothing to do with slurs on women.
It's just casual sexism.
Also, you have no idea what Sarkozy does behind closed doors. I don't judge, though. "The basis of optimism is sheer terror" - Oscar Wilde
Also, you have no idea what Sarkozy does behind closed doors. I don't judge, though