“No one has the right to talk to a child about sexuality unless it’s the parent, or the parent has given permission,”
First, that’s patently bullshit.
Second, what does Fred Finger or his sexuality have to do with the creation of Batman? I don’t see the need to bring up Bill Finger’s kid at all, regardless of orientation.
Fred Finger was born Dec. 26, 1948. Nine years after Batman was introduced. 5 years after Batman first appeared on film.
It’s a tragic story:
https://www.hivplusmag.com/entertainment/2017/7/18/batmans-real-life-son-died-aids-complications
Nothing to do with the creation of Batman.
As a cat owner, this doesn’t even look like a real print. It’s too deep. Most likely a manufactured print done as a gag by whoever made the bricks.