SA, this is not anecdotal, it is data from Oneparentfamilies, the charity for lone parents in the UK. The overwhelming problems they come across are not the denial of access, but the use of access by deadbeat dads to disrupt and undermine the family lives of the ex-partners and in many cases, to threaten and abuse those ex-partners.
No-one denies that there are a handful of harpies from hell who use their children as a weapon against their ex-partners. But they are a handful, as opposed to the majority of mothers who bend over backwards to try and get their exes to take their contact arrangements seriously, and about whom we hear nothing in the media.
We hear so much in the news about these poor men who are denied contact, and so little about the much larger number who simply cannot be bothered to fulfil their duties as fathers. We also hear nothing about the outside pissing in phenomenon; I agree that shared custody is a good option where you have two people who respect each other and have agreed a discipline system where they do not undermine each other. But if the children have two separate centres of authority in their lives, then you have a recipe for chaos; divide and rule.
Everybody accepts that mothers and fathers have got to back each other up and not undermine each other's discipline in front of the children when they live together. How comes all that solidarity in the face of the children is just seen to be unimportant when they split? Sorry, but it simply doesn't make any sense. Children need consistency, consistency, consistency. And they can only get that if the partner with less input agrees to support the partner with more.