My wife has no issue at all with the portrayal of the females in Malifaux, she was looking at the website when I was trying to pick my first crew and loved all the models, especially Colette, Viktoria, Miranda.
She then read the book when it arrived to get a better understanding of the background and I am now under instructions to buy Colette and the showgirls as she really wants to paint them and play with them.
When I was telling her about some of the comments on this thread even she commented on how the models are supported by the fluff and that yes they probably are going to be a bit sexy but what do you expect when miniatures games are played by 70% men?
The easiest thing? Play with the models you want, if things offend you find a group of like minded people and start your own group with your own code of conduct.