"Boston Marriage" was a term used since the late 1800s for a de facto lesbian relationship. No one gave a wooden nickel about such as female professors were expected to retire on marriage, so many of them went "fuck that" and didn't marry.
An attack on shipgirls who are in such a relationship will be seen as an attack on the fleet as a whole. Also, women had been for quite some time gaining more independence, and overwhelming firepower is its own language and an automated validation system for claims backed by it.
EDIT:
If all else fails the morons can be "befriended".
@beast_regards assuming you're the same name on SB, I use your definition (from Revenant) of Befriend (v):
Using mecha-class beam weaponry to inflict grievous bodily harm in the process of proving the validity of your belief system.
We already have the mecha (musume) part down, so ignore the beam bit and we'll be fine.