His parents didn’t do anything because they were enablers.
They bought him $60,000 cars and paid his rent. They coddled him when he didn’t want to go to school. Every job was beneath him, because he was superior to everyone else. He believed that women should just throw themselves at him because he was so wonderful, and no one ever disavowed him of this idea. As far as I can tell, he never even spoke to a woman, he just expected them to approach him and give themselves to him. This was a guy who thought he was so smart that he should rule the world.
And when none of that happened he made a plan and killed a bunch of people.
His parents weren’t going to have him committed. He was a special little snowflake, and he could do no wrong. I’m sure his parents blame the evil women who ignored him and the NRA for letting those evil guns shoot those “not-so innocent” girls....
I suppose they think we should blame knives and cars as well as guns. Since their little coddled boy could not have possibly done all this without the help of those evil devices./s