And no I don't mean the anime I mean the original novel.
>Dorothy gets special magical skills only she can use
>Dorothy has a (reverse) harem form around her
>Dorothy has a cute mascot character (Toto)
>Dorothy is on a quest to go back to the real world
>Dorothy happens to be the only one able to help solve all of her harems problems on her way back to the real world
>she is overpowered as fuck (one shot not one but TWO wicked witches)
>meets another person from the "normal world" who is powerful in Oz, albeit not for power related reasons but political.
>girl from the modern day (at the time) gets involuntarily sent to a magical realm upon dying albeit it was later revealed she did not but come on she was hit by a tornado unguarded
>in the end nothing mattered fuck the expanded Oz universe
For a more meta point
>the first Wizard of Oz adaption to be starred in Japan was an anime made during 1982 and 198, a movie and a tv series respectively, just in time before the massive DnD boom of the late 1980s to early 1990s that also becomes an important part of later isekai
One could argue that Alice in Wonderland also had Isekai elements but Alice didn't seem too much of a rush to get home, didn't have any special abilities, didn't have a harem and only had the similar "normal person goes to magical realm" part that even some older fairy tales have. Compare to Oz that when published in the 1900s that was literally about a modern girl getting involuntarily transported to a magical realm. Does this mean we can blame The Wizard of Oz for ruining anime?