Perhaps think of this as a science fiction thought experiment instead. It could be an interesting societal outcome of such technology, right?
Edit: In response to your follow up, "useless" can be used as matter of fact, or as an implication of "worthlessness". Again, your choice of words "applied feminism" betrays your claim.
That's the only purpose of a male when compared to the female - this is a simple fact, no need to take it personally.
There is nothing factual about this unless your world view is an infantile one which believes the only valuable difference between men and women is the ability to create sperm vs the ability to carry eggs. Common complaints from women clearly reveal that isn't the case.
Practically it is lot more complex with imprinting and other interactions.
As a social thought experiment :when such tech becomes achievable, it will be likely available for either sex and combined with gene editing sex will become more fluid and meaningless biologically and only have asthetic purpose .