This is a tough one, because "I want to keep the option of future children open" is a legitimate reason not to get sterilized. And on the other hand, LW is saying "My keeping open the possibility of children in the future is more important than your not having to bear the burden of birth control or risk of pregnancy." Which, yeah, not a good look, especially in a climate that's saying women's reproductive wishes don't matter.

That said, if I were advising LW's wife, I'd tell her to get her tubes tied for her own peace of mind. What LW says about wanting to keep the option open applies to her in reverse -- what if LW dies and she's in a new relationship with an unsnipped man? If she's gotten the tubal ligation, she can spend the next 20 years with minimal worries, whether with LW or with someone else.