Well in the first post, the topic starter presented a situation where there are problems between the mother and the wife, both of them being at fault. If only one was at fault, it might be a different story but in this case it seems like they can’t get along. In this context, I think moving out would be the best thing for everybody. It is the right of the wife, so unless a man really doesn’t have the means, he shouldn’t be denying her rights.
Moving out of your parents’ house and into your own place doesn’t necessarily mean that you can’t be there for your parents or siblings if they need you. You could just move close by, not necessarily to another city or anything like that.