qaatloz

Not really...

On the biological level it is trying to stop millions of sperm-cells to sneak in or prevent one egg-cell from being available. In the numbers game it is less risky and more reliable to make the one cell unavailable then to try to prevent the millions from being viable. Even if you shut 99.99% of them down, you still have more risk than having 99.99% chance of preventing the one cell being available.

I'm afraid that however we want the world to be equal for man and women, the biology itself is unfair and needs a lot more time and research if you want to equalize that.

Or use the tie-off snipsnip solution. It is a bit more permanent, but is pretty reliable in preventing.

I agree.
Thank you for your comment. For me the broad statement that a manual is unnecessary or even a sign of being a bad person when you need one is way to simplistic.
Why have we defined constitutions, civil laws and declared what are to be considered to be human rights? Because it can be difficult to sense the border between protecting yourself, family, minority group or culture and doing actual harm to the rights and freedoms of people around us. To find the courage to truly listen and consider other opinions and beliefs and protecting the 'sanity of mind' by ignoring or denouncing the other.
Then it can help to have some guidelines. Either from religious sources, constitutions, humanistic principles or just knowledge from historic events and their impact.