Religion and spirituality are ethical reasons. Taste, bad taste, and price are not reasons why anyone would actually go vegan - veganism would call for turning down a free meal regardless of how well prepared it might be. "Dislike" of industrial production of animal products or in general, would obviously be rooted in ethical, health, or environmental concerns. If you only avoid meat and animal products on the basis that it decays more quickly or attracts flies, then you should have no objection to eating meat that is fresh, unless you are concerned about health risks. If you are vegan because you want to set an example to kids on how to eat healthy, then you are doing it for health reasons. If you are vegan because your parents tell you that veganism is good and you believe them, or because your parents tell you that it is bad and you reject that, then those are both ethical beliefs. If you are vegan out of spite towards meat eaters for making bad arguments, then it stands to reason that you think vegans make a better case.

So all of your arguments are invalid. Which you would already understand if you had read even the first line of Wikipedia about veganism:

Veganism is the practice of abstaining from the use of animal products—particularly in diet—and an associated philosophy that rejects the commodity status of animals.

But thank you so much for coming here to grace us with your very educated and informed perspective.