Did automobiles replacing horses, diminishing horse population, diminishing horse suffering – as a consequence of work forced upon the animals. Is that moral win for horses; less suffering? Although their population is vastly smaller than 130 years ago.
Flip it and you have massive horse breeding, horses being stored on the side of the road in winter. Horses dying of abuse and overuse. Etc.
Cars aren’t the problem. Humans are.
Environmentalism is a nutshell.