I don't know why you're being downvoted. You have a good point. I hate these vague accusations of "that's environmentally unsound" which get bandied around, wit

I don't know why you're being downvoted. You have a good point. I hate these vague accusations of "that's environmentally unsound" which get bandied around, without any evidence at all and in the full knowledge that they're as impossible to refute as they would be to prove, just because it's an unfalsifiable way of attacking something you dislike. No one ever calls them out on it either.