Beef cows in a factory farm setting are hardly euthanized humanly. It would be rare if they were. I guess it just depends on the slaughter house, but in general, the cows aren't treated well and can suffer a great deal before death. This goes for most other factory farmed animals. Smaller farms and private owners are usually always better in the way they treat their animals.
I still eat beef, but I just wanted to point that out to you. It's not just reptiles. But I do agree with you that many people are less sympathetic to reptiles because they aren't fluffy and cuddly. Fear also drives this notion.
But even the fluffy cute animals can suffer just as much. Especially if money and greed is involved.
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