Isn't Joker's new movie a morbid shit?

I have worked in the field of mental health all my life.
People often wonder where mass shooters come from … well, here's the explanation.
Consider this fact in the movie: the Joker would not have been a murderer if some fool had not given him access to a weapon. No weapon, no murder.
And so, this movie is very relevant today when American citizens make decisions about their government and especially weapons.

Consider an alternative ending for the Joker …… he receives mental health care with an appropriate license or some fool gives him a gun. Well, which end would you prefer?

"Joker" reflects real life. And if you wanted to entertain yourself with an "action movie", I could see your disappointment.