You can pick
Why would you think that you can not pick who you have a kid with? What kind of society has this person been raised in where they think that they need to be assigned a partner against their own wishes? We do recognize that some countries still have arranged marriage practices, but common.
Also, what was the backstory going on here that led this person to make such a statement in the first place? Did they have a child with someone they did not pick originally? We feel bad for that baby, we hope they manage to work out some type of relationship for the sake of the kid.