Harry is the main protag, so what. He was never shown to be incompetent. Dumbledore being retconned into a gay means that he prioritized his gay lover over stopping him which in the book series directly leads to the start of WW2, meaning Rowling said the gays were the true cause of WW2. Hagrid is only treated as a buffoon by Malfoy, a main antagonist of the series, for Harry and the other characters, they respect him as a kind man who loves his job as keeper of keys and grounds before becoming an excellent care teacher, who routinely helped the school and Harry throughout the series up through the battle of Hogwarts. Flitwick is the charms teacher, he has a role in most of the books and in the movies is the one who puts up the barrier that keeps out the entire army of death eaters until Voldemort has to be the one to take it down.

But if we still keep up with your incessant whining about how unfair the male characters are treated. Let's look at the female ones.

Hermione is treated as a know it all bookworm that annoys everyone around her, in the movies the director's blatant favoritism towards Emma Watson, no doubt a sex pest, has actual caused more people to dislike Hermione's character for the amount of scenes stolen from other characters just to be given to her.

McGonagall, is said to be stern, but in the films she might as well be an idiot, how many times does Harry have to come to her with his belief that something is wrong before she actually listens to him? Especially after being right nearly all the time. She's shown to be completely ineffectual at stopping even someone like Draco from calling other people mudbloods and threatening them.

Molly Weasley, is show in the books and films to be an overbearing woman who in the fifth installment all but treats Sirius as an invalid in his own home and decided to enforce the "Don't talk to Harry rule" just because Dumbledore said so. About the only competent thing she did was blow up Bellatrix other than she contributed very little.

Ginny, in the films wasn't even a character for the few times she was relevant, in the second film after the introduction she dropped out of the film until the end, and in the later films Harry and Ginny had so little on screen time that most people who watched only the movies were genuinely surprised they got together while it infuriated the book readers because she stopped mattering.

Pretty much the only other female character to actually do anything in the films was Bellatrix and she was the main female villain.

Cho Chang was turned into a backstabber when in the films she was the one to turn on the Defense club Harry was running, not her friend as it was in the books. Fleur and Tonks pretty much vanished from the series, to where they were mentions in the films until you see Tonks dead and get told that Fleur married Bill.

And the only other female of note in the series is Dolores Umbridge, which everybody hates, so many people hate her more than Voldemort. Just some random bitch karen teacher is considered worse than their wizard hitler.

If you are going to whine about a series being "such and such theme" at least know what the fuck you are talking about.

There are plenty of leftist themes that hold back the story, but just as many unintentional right themes as well, such as the government will control the media, the schools will dumb down your education to make you not a threat, the (((goblins))) are just waiting for the fighting to die out to pick a side and will screw over good people for profit.