You may have read about how in Scandinavia especially it has become very common for women to use sperm banks and ever larger numbers of women are using them and becoming single mothers. I see this as entirely positive. Vox pop of women at work 75/25 in favour yet of 20 men asked, only 1 said he thought it was a good thing. I know they probably feel threatened, redundant etc but I would have thought some of them would be able to see the good points.