I mean, you're not wrong, but ....
Isn't that really the heart of all "great" Batman stories?
Why did people like The Dark Knight so much? Well, one reason is that it explored how the Joker wanted to show the Batman that they were so similar. (Really, that's kind of the Joker's raison d'etre in most modern takes ... the dark(er?) mirror to the Batman).
Doesn't it feel like modern depictions of Batman always have him brooding about "the edge," with villains that are all like, "Hey, we are the same ... just go a little farther, buddy!" Not to complain too much- they keep mining the vein because it has resonance, but it does feel very familiar.