I agree that too many animals is being killed but on the other side I dont understand vegans too.As you can guess I am not a vegan myself.People need meat.Meat containd proteins and they are necessary for human body's full potential.Yes you can eat some vegetables to make up for it but not to that extent necessary.Conclusion:People need meat.Of corse killing that many animals is terrible but humanity still didn't find solution to that.
All the best,
@amburator