That it was written, directed, and produced by a huge industry and then made available to be watched in a movie theater is all one needs to know about the machine that is Hollywood, the same machine that produced (no pun intended) Harvey Weinstein.
That is no coincidence, my friend.
> Or, that way the audience might wonder about the darker parts of 20th century Americana around them, much like Lynch did as a child.
I can't stand anything about 1950s America, but 2020s America makes it pale in comparison, and Lynch's America was on that horrible descent from "does good for the world" to "embraces totalitarians for profit".
How we make our money is a bellweather of the soul, as is the art we produce and/or appreciate. The question is, "Does it elevate humanity? Or not?"
Learning about evil is necessary on the path to wisdom, but profiting off titillating the impressionable is foolish and detrimental to society.
There are many ways to tell the story of Jeffry Dahlmer, and the choices a writer and director makes in that regard show those folks' character, or lack thereof.