What a dumb reason to be anything!
Take this to another level:
I have a car and I really love this car. It's beautiful, it sounds great. I'd hate for my car to get hurt, so I'll become a car-insurance salesman.
I have a tree in my backyard. It's beautiful, has great leaves, etc. I would hate for someone to cut my tree down, or even weed-eat too close to it, so I'll become a tree-hugger.
Being a vegan because you love your cat?
Wow, Moby. Wow.