We're doing animals a favour by
giving them life.
This is a weird excuse.
I see forcibly breeding animals into existence, separating families, fattening them up, then killing them young for food and money not a favour but oppression and cruelty. Are they doing them a favour when they put them in gas chambers. It's all mad.
Living a Vegan lifestyle is really easy, and does the most favours to animals.
A useful website is Veganuary.