There was a Men's Rights Movement in the UK under the banner of 'Father's 4 Justice'.
I read a book by the founder of the group. The scary thing is that the British Security Services infiltrated the group and started to plant stories in the media about 'Father's 4 Justice' planning on kidnapping the Prime Minister's baby (for a few hours).
After the outcry the group disbanded. It is shocking that the secret services should be used in such a partisan way. Yet - it is also revealing how scared the political elites are of men coming together and protesting.
Also - it was sad because the people running the group were suspicious of the new members from the beginning - and straight away thought they had links to either the police or the intelligence services. Particularly since they were deliberately trying to push for the use of violence and so on when planning future stunts.
Anyway - here is the greatest stunt they had [watch from the 1:20 mins mark]:
The key thing to remember about children is this.
If your wife/girlfriend makes an allegation of domestic violence against you. You will be arrested and forcibly removed from the home - that very same day. And you will have to have supervised visits with your children until those allegations have been dealt with by the courts. This can take years. And once an allegation has being made it is virtually impossible to get such an allegation withdrawn - even by the person making it.
And on top of that - any new partner can see as much of your kids as they want. So - you will often have situations where the new father figure (who has no biological links to the child) will have 10-20 times more access to the kid than the real father. My brother recently had a kid and I often remind him how fucked up that is. In theory I could shack up with his partner, see as much of his kid as I want and then ring the police and have him arrested every time he came round for an unarranged visit to see his child.
And you face prison if you don't keep up with alimony payments. But that seems to be (as far as I can tell) a bigger problem in the US than the UK. I am not sure what the state of alimony is in the UK compared to the US. And even in the US it varies state by state (with California being one of the worse).