China, India and Indonesia." The "faith in the singular efficacy of conjectural education and moral persuasion," Best writes, is no substitute for "direct action, mass confrontation, civil disobedience, alliance politics, and struggle for radical change." Donald Watson has stated that he "respects the people enormously who do it, believing that it's the most direct and quick way to achieve their ends." Sociologist David Nibert of Wittenberg University posits that any movement towards global justice would necessitate not only the abolition of animal exploitation, particularly as a food source for humans, but also transitioning towards a socioeconomic alternative to the capitalist system, both of which dovetail into what he refers to as the animal–industrial complex. Some vegans also embrace the philosophy of anti-natalism, as they see the two as complementary in terms of "harm reduction" to animals and the environment. Vegan social psychologist Melanie Joy described the ideology in which people support the use and consumption of animal products as carnism, as a sort of opposite to veganism. Exploitation concerns The Vegan Society has written, "by extension, [veganism] promotes the development and use of animal-free alternatives for the benefit of humans." Many ethical vegans and vegan organizations cite the poor working conditions of slaughterhouse workers as a reason to reject animal products. The first vegan activist, Donald Watson, has stated, "If these butchers and vivisectors weren't there, could we perform the acts that they are doing? And, if we couldn't, we have no right to expect them to do it on our behalf. Full stop! That simply compounds the issue. It means that we're not just exploiting animals; we're exploiting human beings." Dietary veganism Some people only follow the diet that fits to a vegan way of living. Brenda Davis and Vesanto Melina perceive a focus on the diet as a precursor to a vegan way of living. Authors like Richard Twine and Breeze Harper argue that this can not be described as veganism, as veganism is more than the diet. Gary L. Francione argued that the promotion of "dietary veganism" lacks the moral imperative that was expressed in the words of Leslie J. Cross, an early and influential vice-president of The Vegan Society, who described in 1949 that veganism was "the abolition of the exploitation of animals by man". Environmental veganism Environmental vegans focus on conservation, rejecting the use of animal products on the premise that fishing, hunting, trapping and