i have a predisposition to never want any spiders or morphs

[Eric Alan]

Ok so how do these different morphs "pop up randomly"? Do they all come from the wild or is it just some random unexplained base morph that pops out of an egg bc of some random genetic mutation?..

Everything "comes from the wild". It just takes the exact right combination of animals sometimes for some genes to show up. Whether this happens while they're still "in the wild" or in someone's collection is irrelevant.

You're getting into "What is a genetic trait?" territory here. Ball python morphs are not special snowflakes (as much as we'd like to think that they are), so maybe some research into the basics of genetics would help.