I think a lot of the debate boils down to the two words needless suffering.
First, we could debate on animal suffering. Does an animal suffer when it is killed to make a fur coat? When it is slaughtered in a slaughterhouse, or when it is shot in a hunt? Is an animal capable of suffering?
Then, there is the question of need. How do you define need? Some people take need in this context to mean, ‘have a use for’. In this view, it’s important to use the animal products. So, fur is OK as one has a use for fur in winter clothing, meat is ok, as meat can be used for food, etc. So a person who has a use for animal products and tries to get them in a way that doesn’t include unnecessary suffering would be ok.
Others take it as “have a need for”. The difference could be seen in lots of areas. For instance, living where I do, I have a big need for warm clothing. I do not have a need for fur, though, as I can meet that need through other options that are available to me. I have a need for reliable transportation, but I don’t have a need for a brand new Porsche. I need computer access at home, but don’t need to update my laptop right now, even though the mouse sticks a bit. Finally, I have a need for nutritious food, but I can meet that need easily where I live without meat or other animal products.
Some might argue that they have an actual physical need to eat meat. I’m not a doctor (well not a medical doctor anyway) so I can’t debate on whether or not some people can’t survive without meat. I know that I can thrive without it. It would be harder to make a case for needing fur and purchasing new fur coats as there are many other options for staying warm.
So, if you take needless to be the opposite of having a use for (e.g. it’s not needless if you eat the meat, or wear the fur), then it’s probably hard to understand where those of us who take needless to be the opposite of having a need for (e.g. it’s not needless only if you have an absolute need for the meat or fur) are coming from.
Until someone can show me that I personally need to eat meat or wear fur, I will believe that it is needless for me to do so. You may well think differently, and I’m sure, as vegan and vegetarians are a minority, that most of you do. That’s your prerogative, of course, and you are not breaking any laws or sinning by doing so. So, I sometimes wonder why threads like this get so heated.