Hmm, to be honest, I don't think cats are jealous/greedy creatures. They are natural predators, so if they were hungry or wanted to provide for their family, and they found a fairy, (which would probably remind them of a mouse/moth/bird in size), they'd try to catch it. However, cats just want food to live on, a family to live with, and a home to curl up in. They're not very needy animals, and wouldn't go out of their way to kill a fairy just because it is magic.
So, no cat-murdering necessary to save fairies. *cuddles cats* I love cats, and also love fairies. *cuddles fairies too* xD I also LOVE this picture, the colors and style are perfect and whimsical! *cuddles this picture*