HRH/Mary - thanks for your additions. I think this is turning into a useful discussion for both 'sides'.
I agree that many women would prefer to spend the early years of their child's life at home with that child. But women are not an ethnic minority. We number nearly 52% of the population. Surely a government should be acting for us, accepting the fact that it is not fair that half the population will suffer reduced career chances because of their biology? It is not a small problem affecting a small part of the population. The urge to have children is not a lifestyle choice in the same way as choosing to give up your car. We can choose when and how many children to have, but more than 82% of us have children - it is one of the driving forces behind the survival of our species. And those children are the responsibility of both parents, whoever ends up doing the day-to-day care. It is unfair to penalise women simply because they are the ones who bear them and (in the main) raise them. That time out should be recognised by society IMO and should not have such a long-term effect on the rest of a mother's life. I consider the issue of child-caring responsibilities and how they affect individual families to be an issue about the overall good of society, just as is the case with education and the NHS.
I think with regards to removing perpetrators, you would have to limit it to incidents when the police are called. There is some discussion about this in Parliament already, which I wholeheartedly support. In these cases, it is pretty obvious that abuse is going on - the police are arriving in the thick of it - and the likelihood of evicting an innocent person is pretty slim.
Slightly off on a tangent (and with extreme wariness following the Bristol Palin thread 
) how you feel on this will depend on how high you believe the instances of false allegation are. Unfortunately, there is no large scale research into the instance of false allegations, so it's impossible to tell. I do think this is something that needs addressing. It would help both sides enormously to have some decent figures to work with and to take the guess work out of it. Of the research that has been done, however (e.g. Bancroft), it seems that false allegations are extremely rare. Whatever approach you take, someone can become an innocent victim - whether that's a man unfairly accused and evicted, or a woman who has to give up all her possessions when she is forced to flee her house with her children and subject them all to months of living in a refuge or B&B with no security and hardly any money. If you believe that only a small proportion of women lie (which I do) the lesser evil is to believe that they are telling the truth and change the law so that they have better protection. The number of alleged perpetrators unfairly treated will IMO be far fewer than the number of victims unfairly treated under the current system.