With over 30% of Americans falling under the category of obese and 3/4 of people being overweight, it seems like a logical approach to appeal to people's desire to be healthier when trying to get people to go vegan. The obvious logical fallacy is assuming that these people can control their food choices. But, isn't that the problem? People don't end up obese by being in control of their choices in regards to their health. And how many of us know several people that after having a heart attack come home and instantly go back to eating steak, bacon and eggs.
My point, at this time, is not to pass judgment on these people in anyway. My point is, people are quite good at destroying their own health while fully knowing that they are doing so. It is not that they are always willing participants, much of this is cultural or some form of addiction. But ultimately, I think people are far more willing to destroy their own physical well-being than to violate a moral code.
That is why I believe that the baseline of the vegan movement must be that 'this is about the animals'. There is nothing more clear than that we have violated the rights of animals for centuries (which too often is used as a justification for continuing to do so). Just as the rights of so many groups have been denied throughout history, once more we must struggle just to reach the starting-line of where all living beings begin: equality in terms of our right to live freely while seeking our own version of happiness. We must establish firmly in the minds of humans that we were not born with the reins of power handed to us to rule like tyrants while abusing and torturing other living beings. We cannot find peace while dealing out misery. We cannot find happiness by taking it from others. We must have complete social justice for all or be prepared to see all of our rights taken at the whim of the majority.
Animals are born free, yet everywhere they are in chains - paraphrased J.J. Rousseau