That kind of comment has the opposite effect, it keeps people asleep with lazy (and corrupt) misinformation. Whenever people say 'they are all the same', they help cover for the actual bad behavior - it's now hidden among all the other behavior and not worth examining or pursuing, and rationalized.

They are certainly not all the same. If you don't distinguish them, you cut down the people actually fighting on the front lines. It's friendly fire. They are shot in the back.