So much to unpack here. He doesn't have any viable material whatsoever, he is sterile. He'd have to use his dad's sperm, or closest male relative to be able to get it done. He doesn't seem the type who'd go for a random donor. When it comes to the kids, older ones don't need this again. Wolf was the favourite for being a boy. Saskia is still forgotten in the mix. Then Posy was the favourite because she was Matt's and now it's because she's mummy's content centerpiece.
In Balkans and plenty of European countries, patriarchy still prevails (to my knowledge), so they'd have to try hard to extract sperm deciding on male sex. That way, Tammy gets her perfect instagrammable set of two sons and two daughters, and Zucchinis have a male offspring carrying on their last name. A child the ogre might actually even be around, let alone like. And definitely favourite above her three.
Either way, if they go through this, it is a new bout of favouritism, another breakup with another child by another man and milking the whole process for content repeating themselves. Those poor children..