Let's assume that "men shouldn't be making decisions about what women do with their bodies".

Pregnancy and childbirth take up all of 1% of the average women's lifespan. Child support payments take up 23% of the average man's lifespan. So why should women be able to unilaterally make a decision that affects 23% of a man's life? They say that consent to sex is not consent to pregnancy. So why does this glaring inequality exist?