Third, vegans don't care about animals or the environment, they just hate humans. They call us speciesists and don't understand that we are part of a chain and that removing ourselves from that chain would only bring thousands of problems to other animals and the environment too. For example, if we stop consuming an animal X, this one by natural order will have on population and will consume more of others, until the extermination. This has already happened in my country, where a species has been protected in an absurd way and because it lacked predators it ended up killing its prey and other animals, given the competition.
Fourth, they never thought consequences. In their idealised world, vegans believe that animals would live perfectly and this is not true: we will need more and more land surface to generate more and more food (the vegan diet is very low in calories and nutrients). When the animals are loose they will begin to invade plantations and methods will have to be developed to avoid or kill animals, otherwise they will eat our only source of food (and on top of that it is the worst). We will kill animals to survive and not to feed ourselves, which will be an absurd irony.
Fifth. They're hypocrites. All their eating habits are based on reproducing the foods they need naturally: blood (tomato, ketchup), meat (vegan meat), milk (vegan milk), eggs (vegan eggs), fat (vegan butter), everything is absurd to deceive themselves and they want that for you and for the rest. What's the point of telling us that we're eating something vegan that “tastes just like meat”. When I watch vegan videos, they imitate our true natural diet with their products, because in order not to eat only fruit, vegans use many products. In addition, the products they eat are so bad in nutrition and taste that they need to be smeared in spices, sauces to hide or give another flavor to the food. Not to mention all the vegans I know eat daily like 6 pills with vitamins (not all, of course there are vitamins that you only can get from animals) and that's not a healthy, natural diet, it's just pharma industry. It is a hypocritical life of people who have mental problems, are addicted to sugar.