Obviously what ICE is doing is awful, and vasectomies would in some ways be an improvement (although big doubt that they want a reversible birth control procedure). But critiquing what is clearly steps of a genocidal program on whether or not is patriarchal seems to miss the point.
Don't even give them the benefit of this premise, what they're saying is as vile as "half the guards at the death camps should be women", which is a literal joke but here we are. Devoting even a breath of air to the idea that some form of ethnic cleansing is preferable to another (even if in some dork ass utilitarian way it might be) is giving up ground that we cannot afford to give.