Creationists and pretty much everyone accepts evolution in terms of heritable change. I am surprised you did not realize this.
The argument is whether microevolutionary processes are sufficient to create macroevolution, and whether the data supports universal common ancestry, etc,....
But the YEC arguments I have come across argued for more rapid evolution "within a kind" since the Flood. They argue, for example, you could have only one bear kind that evolved into all the different types of bears. I think they argue for 2 Cat kinds.
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