You don't support humane slaughter or buying meat from free-range cows, because you think not being brought into existence is better than a happy life with an abrupt ending? What if supporting humane slaughter led to less animals being factory farmed, which is agreeably relatively better conditions for the farmed animal population as a whole? That would then be lessening the suffering of animals in the hands of humans.
>Often vegans are also environmentalists in that human effort has put additional major stressors on wildlife - deforestation, oil spills, human-accellerated climate change, plastic pollution, etc. Factory farming by humans happens in addition to wildlife suffering.
That's great for keeping a clear conscience. But realistically is it believable that this will slow down the impending climate change?
It seems to me that a vegan's idea of helping animals/climate is to disconnect from the situation entirely. That might allow for avoidance of responsibility and a moral high-horse, but economically, it isn't realistically helping to lay the groundwork for lessened suffering and a cleaner environment.