I think men involved in impregnating a woman who doesn't want the baby and can't get an abortion should be castrated. You might say that a vasectomy would suffice, indeed it will prevent the man from doing further damage, but the damage is already done is the problem. If the woman has to endure labor ...Oh, I don't think it's as selective as you imply. I think most people agree there's a place in society for abortion when the mother's health is in jeopardy or the baby will be born with severe disabilities, the major difference seems to be whether there should be unfettered access to abortions and whether or not a fetus is a person with an unalienable right to life, liberty and the pursuit of happiness.
How serious is this proposal? How serious is men (of all things) weighing in on matters that affect biological females exclusively and assuming they have any right to?