I have to say I wouldn't mind being a podium dolly. For no other reason that it'd be a bit of a laugh.
I think the champagne symbolism isn't about dicks. Its more about an expression of pure excess and wastage which is reflective of the sport even more. Something that I can understand people having a problem with too but I don't think this particular act is deliberately steeped in cock comparisons.
The sport is riff with sexism, but I don't think that means that the women are particularly exploited either. And I do think it is changing. (Not nearly fast enough, but it is happening).
RE: Hamilton. He's annoying because he acts like a spoilt baby when he doesn't have things go his own way. He's arrogant in a way that hardly any of the other drivers are, which makes him stick out. (The majority of the others are really nice). His competitive streak with Rosberg brings out a nasty streak that isn't necessarily in the best interests of the team. Its good to be competitive, but its being a dick with it that upsets people (eg, Vettel ignoring team orders and over taking Weber a couple of seasons ago. Vettel, doesn't tend to do it all the time like Hamilton though).
Hamilton also acts in a very brash American kind of way with his arrogance and little modesty. This is something that doesn't go down terribly well with the British public. Or indeed press. (The papers like to knock anyone who gets an ego off their pedestal - see the England football team).
Maybe the Daily Mail have taken a dislike to him because he's black. I personally don't think that's the case tbh. I think they have more picked up on the undertones that he's not liked by the British Public so they can cash in on this and so are reflecting that dislike as much as they are creating it.
Being a dick is not related to your race as far as I'm concerned. There are white and black dicks.
I do have to say, one of the things I do like about F1, is you tend to support a driver regardless of your nationality and their nationality. Its quite borderless in that sense.