V4F is the best way to overcome that argument.
In the beginning, anyone not intmate connected with a given situation with be labeled "The State". Fathers are very intimately connected---emotionally by love for their baby, and legally by virtue of the fact that financial responsibility arises from determinations of paternity based upon the baby's DNA reflecting the fathers.
None can argue that that father's DNA is imparted at conception. Where begin responsibilities, there begin rights also. A father's responsibilities, even if arguably 9-months-deferred, begin with conception, because that is when his DNA, the basis of his financial liability, is imparted to his progeny.
Without an adult, intimately connected protagonist, it will continue to be easy for many to write off the unseen baby as an abstraction.
As to calling it a symptom, not a cause...I would cordially but emphatically dispute that. The core of the feminist movement is patricidal misandry, hatred of fathers and fatherhood. Just go to any feminist website, like now.org, and type the word father into their internal search engine. You will get back a plethora of feminist articles, all of them virulently anti-father.
This is the core of the opposition. It IS the cause. The more pro-abort a feminist is, the more inclined to father-bashing she is.
For more evidence, run a search on Feminists For Life. While this group is a minority within the larger feminist movement, their website is absent of two things that most feminist websites do have: father-bashing and a pro-abort stance. Again, the patricidally misandric father bashing and the pro-abort stance go together: either both are present, or both are missing.
This is the entire underpinning of the feminist pro-abort stance.
Trust me on this, if nothing else in all the world.
See #150, this thread.