How do they even think it would be a mistake? Do they know God? Maybe God uses people who are different and somehow "weak" (I don't mean that in a bad way, just thinking about the message that we should take care of them because they are closer to God) to test other people. If so, the bible bashers fail quite bad.

How do they know God didn't deliberately made me agender and some people trans? Why would it be a mistake?

From the start all people had brown eyes. Then some people started having blue eyes. Was that a mistake? It wasn't according to the norm. Today we don't look down on blue eyed people.

Sorry my talk is a little fragmented today. I hope someone can piece together what it is I'm saying.