Bill, I expect my ignorance/stupidity is excessive.However, in wildlife control, as in wolves, they sterilize the males. Doesn't take away the pleasure for either sex so if a male had a harem... Don't tell me that the vasectomized guy wouldn't guard his turf!
And I do realize the suggestion was to implant a removable contraceptive device in the women, rather than a tubal ligation or hysterectomy- I used it for effect.
OK- two generations is too many. How about the current one and the male children down to 10 years, as they become young adults?
Guys, surely you know that you are being tweaked?
Ebbie