How is it any people cannot put themselves in that place with imagining? Even animals could identify with what would not be desirable. Humans should have the sensibility to know they would not want what the animals being used are put through, we can likewise choose to not have anything to do with that, and we can already find out ourselves that there are ways to be very healthy this way without products from animals. And the same amount of use of resources for it and contribution to damage to environments with loss of species does not need to be continued then. https://healthyaging.emory.edu/could-eating-30-plants-a-week-be-the-answer-to-better-health/
It’s not that people think of it as “good”, they just don’t think about it at all. Most people don’t think about where their food really comes from, and where their demand for meat exists, capitalism maximizes profits.
Then there are other issues, like lack of empathy, or just not regarding animals as deserving of life. Some non-vegans may know the source of their food but they simply don’t care.
And then there’s always cognitive dissonance where they might care, but they shove that in the back of their mind and justify eating meat anyway.
All this makes it difficult for a one-size-fits-all approach to educating non-vegans in hope they’ll change their eating habits. It’s not a matter of truth or good, it’s a complex matter of knowing, having the capacity for empathy, recognizing animals as deserving of empathy, and then believing that this information is more important than their desire to eat meat.
They also get really mad when you make them think about it, because most people know it’s wrong.