Xenogen has no inherent claim on any natural resources. Remember, unlike Mhen'ga where the place is pretty much uncivilized beyond tribal zil/vanae, there are actually sprawling local governments on Myrellion that megacorps have to deal with. Xenogen dropping a giant mining team into the middle...
I think it also specifically says you're infertile/sterile now, thus allowing you to have weird internal mechanisms.
Would still allow for a cum-harvesting scene between a boi-nyrean Steele and a nyrean female.
The only race that has futa as a starting option is also the race that doesn't have dickless women, only futas and males. That's why kui-tan get that option when nobody else does.
See my signature for a giant list of documents you can peruse, but the general gist would be "go to Syri/[Your Waifu Here] and click a sex scene, use that as a guide to write something original like it."