I only just noticed this part of Harry Potter and the ootp

In the first chapter, Harry and his cousin Dudley get attacked by dementors. As you do when dementors are near you hear or/and see the worst thing that has happened to you. In the third book harry hears his mother and father dying, BUT now Harry hears Voldemort saying: „bow down to death harry“. He also says a lot more of course.

I thought this was very interesting because it seems like harry has excepted that they are dead . And in the combination with the nightmares and dreams he has having it feels like harry is so scared and angry that he dosen‘t care we’ll not care more as he is more scared of the thought of Voldemort then of the thought of his parents dyeing. If that makes any sense.