Being one person out of thousands, I can say with sincerity, rescuing feral kittens is very worthwhile. I'd be inclined to find another vet if I heard such nasty comments. Does this look like a feral to you?

The cat above (my beloved Sweet Pea) was trapped when she was OVER six months old! Many of her litter mates were feral and found furever homes. Please give the kitten a chance. Feral turnarouds are the best.