OLD is very widely used by people these days. It's hardly just for those who don't have a life.
Casper10, both partners upon divorce are likely to suffer financially, especially the higher earner or one who provides less childcare.
If there are children involved, both parents will be expected to contribute to the costs of the children being raised. It would be pretty shitty of any parent to avoid that and if you've got young children, you can hardly expect there to not be a cost to raising them, regardless of whether the parents have remained together or not.
If one parent sacrificed part of their own earnings and career opportunities in order to provide childcare, there may additionally be compensation for that, because the other partner has benefited by being able to take advantage of the free, reliable childcare, and the other one may need assistance keeping the children provided for while their earnings potential catches up.
One partner may have had to move out of the marital home and find new housing, but the one remaining in it then presumably has to bear the costs of maintaining and paying for the original home. Barring payments from the higher earning partner whose career has benefited from aforementioned childcare.
Every couple's circumstances will be different as there are many factors, e.g. number of children, if any children have SN, career trajectories, etc. But raising children is going to be costly for any divorced parent....any parent at all, for that matter. That's a risk you run by having them!
The broad outline I'm trying to get across is that men aren't singled out for victimisation in this area. You pay for the CHILDREN you were responsible for helping to bring into the world. Or to help a partner get back into the workforce after their career sacrifices supported your own earnings.
I've never taken a penny off my ex in any way as we earn about the same amount and we divide our child's expenses evenly between us. My career has taken a bit of a hit from mat leave etc, but I can get by without taking money off him and I prefer it that way. It is a constant worry because life is expensive and I don't have a partner to split living expenses with. But them's the breaks, as they say....
I'm not unsympathetic to the challenge of finding a new partner under these circumstances. I'm just saying it's not bloody unique to men!