Wait... you don't want to get into politics, but you mention it anyway? I'm so confused.
Personally, I prefer to separate the creator from the creation. But I understand if someone doesn't.
(By the way, I disliked Rowling before it became popular to dislike her.)
But that's besides the point, you want to know whether or not it's worth watching/reading Harry Potter. Personally, I've never read the books, but from what I've seen, Rowling is an above average author. As for the movies. I've watched all but one of them (for some reason I've never watched Order of the Phoenix). They're all slightly above average. I could take them or leave them.
Honestly, I think the best Harry Potter media is probably the games. Namely the first three... both the console versions and the PC versions (seriously, there's way too many completely different games with the exact same name). But even those are an acquired taste.
I personally think Rowling made a very interesting world that you want to know more about. But she did a terrible job at fleshing out that world and making a compelling story within it. I mean, it's clear that a gun is far superior to any of those unforgivable curses. Heck, some of the spells that the first year students learn, have far more destructive potential than any of those unforgivable curses. Yet she does nothing of the sort with them. The fandom has way more imagination than she ever has.
But if you're just wanting something about kids in a magical school though, there's plenty of other things to choose from. The Worst Witch for example. Or U.B.O.S.
en.wikipedia.org
