It is challenging to answer on behalf of all vegans. For me, the choice to enjoy a vegan lifestyle supports my commitment to live as healthfully and joyfully as possible while causing the least suffering possible. That commitment is not specific to a particular species but is instead universal.

Frankly, it seems short-sighted to believe that it is possible to exploit any species or resource without it impacting every other being with whom we share our planet. That is to say, the exploitation of animals, or any other resource, is the exploitation of humans. Truly, each individual action reverberates across our planet and the consequences of those actions impact others in ways that we often pretend not to see.

Can I treat animals as a crop, a commodity, with their purpose being to fulfill my desires and not create environmental conditions that negatively impact the well being of other humans? The evidence indicates no, I can not. The inefficient use of the resources necessary to maintain animal agriculture is a major contributor to food insecurity throughout the world ( http://www.fao.org/forestry/15538-079b31d45081fe9c3dbc6ff34de4807e4.pdf ) and has other negative impacts on the livability of our world ( https://news.stanford.edu/news/2010/march/livestock-revolution-environment-031610.html).

Do vegans care about the exploitation of humans, again speaking for myself, yes, both as it concerns my direct impact on those with whom I enjoy contact, and in the sense of being mindful of the fact that my choices result in a sphere of effects that encompasses the entire world. Within that sphere of effects is my own body - which relies entirely on the health of this planet for its well being. The evidence of care for the world, or the lack thereof, will manifest as my own health and happiness. Recalling my commitment that I shared earlier (to live as healthfully and joyfully as possible ...), to honor it, I must care for my neighbor, near and far as if he/she were myself.