If you need her to "stop killing so much wildlife" STOP LETTING HER OUT! WTF? What a horribly irresponsible pet owner you are!
You may not care enough about your cat to keep it indoors but shouldn't you care about all the wildlife it's slaughtering? Disgusting. As for the collars they are SUPPOSED to come off.
If they don't YOUR CAT WILL BE STRANGLED TO DEATH! Bells also do NOTHING to scare away birds/animals as the cat quickly learns to walk as to not ring the bell. So take off the collars, microchip your cats for ID and BE A RESPONSIBLE, CARING PET OWNER AND KEEP YOUR CATS INDOORS WHERE THEY BELONG!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.