But that’s a silly claim, isn’t it? It looks like a duck and quacks like a duck, but creationists tell you it was only created to look and quack? It’s not really a duck?
Also, you are confusing the cause of the mutation — chromosomal fusion — with the cause of its fixation. The two are entirely separate things, which is why you’ve been relegated to a side thread. And you need to look up the meaning of “revenant” before you use it again.