No. We are not in agreement. She was not in "control" the whole way through. Just because your DIL engaged in reproductive rape, according to your son who's probably lying rather than admit his irresponsibility to you doesn't mean that the vast majority of women found themselves with an unplanned pregnancy because they were in "control" the whole way through.
Women are not more responsible for those pregnancies than the men are. Takes two to tango. Always has. Always will.
Not that it matters how often it.gets spelled out to you because you're belligerent about it, but HE VOICED HIS FEELINGS ON THE MATTER AND MADE HIS DECISION WHEN HE FAILED TO WEAR A CONDOM.
As did you and your sons when you failed to teach them sexual responsibility and they got drunk to get laid and didn't wear a condom.
Those babies are not the fault of the women alone. They are the fault of everyone involved.
Your excusing and equivocating their reckless behavior is keeping them from growing up, regardless of what your grandma said. Real men conduct themselves honorably, act like adults, and don't throw their misdeeds or share of responsibility for them at the feet of women.
Your DsIL are responsible for their share and their share alone. But those babies did not make themselves.
Sounds like y'all need to get the drinking in hand too. It's muddied your thinking.