I think Bob was alluding to the 'ladettes'.....whom often seem more blokey than many chaps. 
Personally, I like a 'gentleman' to be simply that!....I certainly don`t need the unseemly sight of would-be Vicky Pollard types; 'bigging it up' and trying to usurp the valuable place that true gentlemen occupy in our society. 
Largely correct Debs but not entirely - mostly referring to younger generation ladettes. However, I also notice similar behaviour of a fair few women in their 30's and 40's, but if you analyzed it deeper you'd probably find that these were women that had kids at 15 or 16 and missed out on their younger days and are now trying to make up for it big style. 
It's a fair enough point Bob but I would suggest that the adulation of the ‘celebrity culture' has also a case to answer.
In addition, the 'empowerment' factor also seems to be coming more to the fore where many women feel that it isn't necessary to be hooked up to the obligatory male to help then survive in today's society and to demonstrate that by being 'balls-out' in their behaviour and general attitude.
This only becomes a problem if that demonstration exceeds the social norm and, whilst it can be driven by the herd instinct, I feel it to be a largely individual choice.