I heard a good analogy about slavery. The speaker was very clear to point out he was not equating slaves with animals, but this would never be presented like this in the press.
Slavery has existed for thousands of years up until the last 200 or so (depending on where you lived). Economies depended on slave labor. You could not be successful if you did not use slave labor because everyone else did and you would not be able to overcome that disadvantage. That was just how the world worked back then. So now we are vilifying people from hundreds or even thousands of years ago for doing what was normal accepted practice in their time.
Animal labor (plowing, pulling wagons, driving turnstiles, carrying riders, etc.) has existed for thousands of years and only been replaced by mechanization in the last 0 to 100 years (depending on where you lived). Economies depended on animal labor. You could not be successful if you did not use animal labor because everyone else did and you would not be able to overcome that disadvantage. That was just how the world worked back then. So now we have PETA and other animal rights groups fighting against animal labor, but it has mostly died out of its own accord. But for animal labor, why are we NOT vilifying people from hundred or even thousands of years ago for doing what was normal accepted practice in their time?
The speaker also pointed out you can make a similar comparison to dirty, polluting petroleum fueled vehicles. In 100 years are the leaders of the 20th century going to be vilified for basing an economy on fossil fuels that destroyed the environment?