The next time you're about to tell someone('s kids) what to enjoy, remember that what you like is not necessarily what others like.
The writer of the article didn't 'complain about anything'. The complaint is very specific: lots of comics in the comic book store he visited featured more adult illustrations that he and his kid would've liked to see. Valid complaint that doesn't have anything to do with 'attitudes'.
In the USA, perhaps. There is literally nothing about the medium - panes of images, some with dialogue or narrative, which when put together portray a story - that makes it targeted towards males. If I tried to explain comics to people, there's nothing in the explanation that makes it male-only.
And in fact, there's plenty of people writing family-friendly and female-targeted comic books. They're just distributed through the Internet these days, and funded through advertising and merchandise. There's plenty of people reading them, along with manga and similar media.
This hasn't been true of comic books for several decades now. The medium has many examples of high quality, well written, and unique books. Also, the demographics of comics has changed many times over the last 100 years, the focus on men over the last couple of decades is recent phenomenon in the grand scheme of things.