I AM vegan (25 years, if it matters), and I believe human safety comes first. We as a nation kill billions of animals every year. Who are fed to zoo animals? Sheep, pigs, cows. Why not feed them dog instead? We need to stop breeding farmed animals, but whilst we have zoos (which I am obviously against), if the big cats have to eat, why not save a few cows/sheep/pigs, and deal with the dog problem once and for all. There is absolutely no difference ethically between dogs and these other creatures. So if one must be zoo feed, and one is a national problem, let's make it dogs, and be done with it.
Dogs and cats are catastrophic for the environment, in many ways, but mainly in that we feed billions of other animals to them to keep them alive, and we all know how damaging animal agriculture is to the planet. I actually think in a numbers game, the most vegan thing to do is to eradicate pets. And obviously farms and zoos.
But people go all outraged at the notion of killing cats and dogs, but not a peep about sheep/pigs/cows/chicken/fish.
Not a nation of animal lovers by any stretch.
P S. You were never vegan. Veganism is the understanding that we don't eat animals or their byproducts. You were just plant-based.