I Don't Get It

I don't understand. People think that my science project is inhumane. So what? So I killed a few crickets....heheh actually 33 crickets. But for the sake of science! Today I had to speak up in front of everyone in the class about my science project and I just said "so in my experiment I ELIMINATED crickets', and then lots of people were like *GASP*, and then massive negative comments popped out. People were like "OMG that's so horrible!" "It's wrong! What happens if you are a little human and there are giants threatening your life and blah and blah blah blah"...Seriously. It was PATHETIC. It's suppose to be a SCIENCE PROJECT. Duh.