That's why it's awesome that there are so many morphs out there to work with. YOU don't have to work with spiders if you don't want to or have one in your collection.
However, whether intentional or not, you're presenting yourself a wee bit arrogantly, as though you're trying to convince everyone to adopt your moral compass.
This is not a new debate or discussion. There are those who, like you, feel very strongly about the spider mutation and don't want to work with it. Then there are others who appreciate and have them in their collection that don't see the classic signs of stress with their animals that are our only barometer to judge whether it bothers the animal or not.
A stressed animal won't feed, a stressed animal will have a suppressed immune system and become more likely to come down with a RI or other illness than an un-stressed animal, a stressed animal won't breed. Because healthy spiders are eating and breeding in hundreds of keeper's care, one can draw the conclusion that this condition does not bother the animal.
You are able to cite one example where the wobble/spin was so severe that your friend had to force/assist feed it it's entire life. I can cite hundreds of examples of thriving animals, just here on the forums.
It's fine that you have decided it's not something you are willing to work with. I have decided that kinking in caramels is not something that "I" am willing to work with. But I don't think it's my place to try to convince others to do the same. I prefer instead to just focus on my own collection and not worry about what Tom, Dick and Harry are doing.