a) in most of the internet, world, everywhere, no they wouldn't. Men say this kind of thing all the time and it's absolutely fine by almost everyone.
I'll agree that a lot say it all the time but I often find that in a lot of places it is jumped upon quickly but certainly there are places where it isn't (and I don't have a problem with it either way unless it crosses certain taste boundaries)
b) when we're had at least 14,000 years of matriarchy, control most of the money, land, resources, government, means of production; when a third of women aren't abused in their lifetime; when DD isn't expected to be quieter, better behaved and nicer than her male peers, then I will entertain the 'Pepsi ad' argument about women objectifying men.
The 14,000 years argument just smacks of revenge against men for their ancestors choices and not equality, so that argument is flawed. I'm not responsible for things that took place before I was born. The abused women argument I'll agree with as that is important to solve, but the sex of the victim is less important than the abuse itself as it happens to men (obviously in smaller numbers. I make sure DS is growing up to be well behave and nice and would do the same if I had a DD. Ignoring the "Pepsi ad" argument because there are fewer perceived victims than the reverse situation is perverse logic as it looks like "treat everyone equal unless they're a man and deserve it because of something a completely different group of men have done". I personally don't actually have a problem with men or women doing a bit of ogling and admiring the opposite sex as that is the first step in finding a partner and completely natural (otherwise this site wouldn't exist!) so my original comment was just meant as a throwaway comment and not to get sucked deeply into the above justification.
c) find me somewhere where men are objectifying women who are 10-20 years older than them, grey haired, wear suits, talk about politics or play an immensely intelligent Doctor on telly and are saying brains and humour is what they want. Is there a 'would you shag Judi Dench or Ruth Bader Ginsburg' website?
I'm sure those sites probably exist in the depths of the internet (especially if you add Helen Mirren to the list) and my wife has a crush on Professor Brian Cox despite the 20 year age difference!