To come back to the culture issue,
I think that the cultural and social changes in the 70's and 80's re:gender and sexism (and racism and homophobia) in part contributed to the creation of a space where it seemed safe to perpetrate an ironic middle class 'mock' appropriation of a caricature of working class sexism (and racism etc) within wider society that is displayed by the success of comedians like Jimmy Carr etc and as successfully skewered by Nathan Barley with Sugar Ape and the episode where he shags the model he thinks is 13. Unfortunately this safe space and the attitude it has fostered has looped back to make the reality as bad as if not worse than before, also bolstered by a genuine conservative backlash against it.
I think you're right. In early to mid 2000s several Cambridge colleges put on "chav parties" - dress codes based around wearing clothing on the lines of cheap tracksuits, cheap trainers and cheap chains.
In these some of these parties "chav behaviour" was the aim, hence sexist sometimes abusive behaviour was carried out by the male students upon the female.
And it has extended beyond being a male thing, so an Oxford university all-female lacrosse initiation is based around teenage mums/chavs and babies - with "chavs" applying alcohol and
physically punishing their children.
"Older students - who played the role of "chav" mums - wore tracksuits and gold jewellery while smoking and shouting abuse at their "babies", the paper said. During the initiation ceremony Wednesday, the younger girls had to sit on the older student's laps and be "fed" from baby bottles full of booze."
The only concern of authorities seems to be the the prestige of Oxford, which would be badly damaged by extreme abusive behaviour, hence forcing people to drink excessive alcohol is acceptable, only once a year nothing to see. The assumption on the part of Oxford students that working-class women all over-consume alcohol, are all beating or being abusive their children - not tackled.
The classism is the bedrock to this kind of 'new sexism'/lad culture. The NUS has a report out about lad culture within universities. It seems to suggest this has emerged from within the top-tier universities, in particular their middle-class element, often associated sadly with sport-team-based bonds:
"In Dempster’s UK based research on male undergraduates who participated in a variety of sports, the cruder the behaviour regarding women and homosexuality the less likely it was that players’ actions would be negatively sanctioned by their peers. The words ‘faggot’ and ‘queer’ are frequently used against sporting opponents at universities in both the US and the UK. Sporting societies and clubs have also been criticised for minimising or even glamorising sexual violence and abuse: in 2012, a men’s rugby club at Durham University was banned from playing after some of its members dressed up as TV star and child abuser Jimmy Savile, his victims and police, for a night out."
See more here
http://www.nus.org.uk/en/nus-calls-for-summit-on-lad-culture
Some of the very worst behaviour is coming from the top and is being pushed downwards. There is something particular going on with middle-class full-time undergraduates who aren't working during the weekends or hunting for work - they have a lot of time, not helped by the managerial funding-decision based reduction in contact time, meaning these top tier universities increasingly focus on masters and postgraduate work. Hence it is filled with this kind of ironic Jimmy Savile behaviour - it has as you say spun out of control.
If anyone is interested in the emergence of 'new lad' culture in the very early 1990s, Tim Southwell's memoir Getting Away with it The Inside Story of Loaded whilst a usual heap of empty anecdotes you get the feeling from his remarks that it is a middle-class grouping that felt itself hard-done-by in the changes in cultural output that happened in the 1980s (anti-Thatcher, soft-left, Rock against Sexism, pro-feminist, Red Wedge, alternative comedy). It wanted to be able to do sexism and chauvinism and saw that the best way to do this would be to openly declare itself intelligent, ironic and smart.
If you look carefully the new lad has a large dose of middle-class moulding.
Loaded, begun in 1993, produced by an entirely middle-class set, is just one example.
In to up 1990, Frank Skinner, although working-class was not particularly loved by working-class people, it was a middle-class judging panel that awarded him the Perrier award in 1991, then it was middle-class commissioners who encouraged the pairing with Baddiel in 1994.
Men Behaving Badly began in 1991 developed by middle-classed novelist and playwrite Simon Nye, first broadcast on ITV - not much support. Then in 1992 middle-class BBC chiefs took it on and encouraged Nye to make it more 'extreme' .
The key figure behind The Word in 1990 is Charlie Parsons, who later brought new a softer but still present new lad sexism into morning television with The Big Breakfast with "working-class" Chris Evans as presenter playing against "middle-class" prudish Gaby Roslin.
Baddiel & Newman are an interesting case because they begin from 'alternative comedy' shows, but by 1991 with BBC producers behind them etc, in a primetime interview on Clive Anderson's talk-show, their approach to Mary Whitehouse is once again ironic sexism, and straightforward chauvinism over the Middle East and the Gulf War.