Pop Culture Detective’s video The Case Against The Jedi Order highlights the problems you mention, but also comes to the conclusion that it was a mistake on Lucas’ part to portray them this way. But like I said, I believe portraying them this way was the point. Maybe the Jedi weren’t always this way, but after countless wars against Sith and fallen Jedi, the Order eventually became more dogmatic in an attempt to avoid that cycle.
At least for me, while that’s definitely the way it feels it should be taken, how it was received by the audience seems off. While I can look at it and go, “Yeah, if the Jedi have lost their way, it makes sense,” a lot of the fans I’ve interacted with, (and significant chunks of Legends Continuity) seem to have taken it as not just, “The way Jedi are,” but inherently part of the Light Side of the Force.
I’m of the belief that the films missed the mark on what they wanted Jedi to be, but that I can at least see what it was aiming for.