Hollywood has been in the remake and sequel business since the silent era. (There were at least three different versions of "Dr. Jekyll & Mr. Hyde" in 1922 alone.) Complaining about Hollywood making remakes is kind of like complaining that the sun rises in the east or that the tide comes in. It's the nature of the beast.
Precisely. Remaking movies is a well-worn tradition in Hollywood. There's nothing wrong with it so long as the remake brings something new or interesting to the proceedings.
For example, while Gus Van Sant's shot-for-shot remake of Psycho was a peculiar experiment, it the end it felt like a waste of time. Had that film explored some new territory (like doing the film from the POV of Norman Bates) it could have been compelling, but instead it was just... redundant.