>>2740First I think we have to establish what it means to be a lizard.
A wizard is someone obtains powers for resisting the succubus until 30.
A lizard is someone who never cared or was tempted by the succubus to begin with and is totally phlegmatic about it.
(I guess incel vs volcel but I don't want to use that terminology.)
In that sense, they can be either born or made, but it's more likely you'll be made into a lizard if you're born a certain way.