Because the person who thought it was a good idea to trick my friend in opening it had a similar mindset with the man who created the Chamber in the first place: taking out anyone with less than pure pure magic blood out of the school, which I find as just discriminatory.

(He soon begins to tear up as he reaches another part of the story that he never thought he would recount again. It is also clear that Harry is choking in tears as he breaks down.)

And he was trying to take her life force away so he can return back to being fully alive again and leave her dead inside the Chamber for good.

(Oh Merlin, how he could not forgot how terribly close Ginny was to dying as Voldemort’s memory of his younger self slowly gaining strength while inside the Chamber: it must have been terrible to see her lying on the floor in that state.)

I could’ve lost my friend if it weren’t me, her brother, and our Headmaster’s pet phoenix coming to her rescue and stopping the man’s plans to return again in time.