Hoping its for the better...

I have this favorite book series that I've read multiple times and love. I recently started reading it again, and finished the first book. One morning I was reading the second in the series and realizing how violent it is. It is a fantasy series, and there are lots of fights and death and stuff. At first I tried to brush it off, but realized that it was making me feel icky and bad. So, even though it was very difficult, I decided to never read the series again. I packed up all 12 books that I own and put them away in the garage. I still haven't decided what I'll do with them...donate them, or throw them out. If I shouldn't be reading them, why should others?