Just think of how Goofy that sounds You can seed up a zillion bytches as long as you do it through a sperm bank without legal consequence, but a bytch can fish out a condom from a trash can and it's the Man's fault because he "gave away his seed""
That dude who literally seeded up all those women in the netflix doc technically didn't break the law, I think they got him for fraud for lying about using his own seed instead of those on the pictures.
Not to mention paternity fraud where a nikka could not be the father at all but if he signs the birth certificate he's legally the father.
Legally that doesn't make sense again natural law isn't fair but the lagal system is based on a system of fairness.
It's not goofy at all. You use contracts for everything. Housing, food, employment etc... this is a document used for the sole purpose of delegating RESPONSIBILITY. Why wouldn't you use it before giving away your DNA to rid yourself of responsibility, especially if the other party agrees and you know the consequence of not doing so. You're living in some ideological bubble that can't be used in any other situation. That's not reality.
Most women aren't getting pregnant from trash condoms because of sperm not being able to live for long once it touches oxygen. But again why would you have your sperm laying around openly with a woman you can't trust. I stick my keys in my pocket around criminals.
The paternity fraud cases with the circumstance you listed are mostly resolved in favor of the defrauded. Its very rare for courts to force men who aren't the father by DNA to be forced to continue as the Father.
Like I said dudes like to pretend they don't know law to push illogical point. The fairness of the law is this, if there is no contract of responsibility before conception the state will have to pay for your baby, so the state will then sue you.
If there is a contract of responsibility before conception the state will sue the mother for any services given by them.
That is fair.