/jp/ - Otaku Culture

Honest question, i know there's a someone for everyone, but considering that there'a an 'even' number of monster girls of the various types, how does stuff like slug girls or other awful (sorry slug fans) monster girls ever manage to find a partner? The most vanilla guys who want human looking waifus will look for a succubus type, the ones who like aggressive typse have a range of choices from Hellhound to Ushi Oni, and the 'freakier' types got Krakens or Sandworms. Given how every niche is covered do slug girls and the similar who also feel weird niches but are outclassed by better monsters have a problem of not finding any partner and going exctinct?
Cause if humanity gets to actually choose/ look for types they like more than half of the MG population will be composed of various types of Succubus as that's the most appealing MG standard form for the common man