I explain it roughly as “Veganism is when you believe that the combined values of non-human animals’ freedom, rights, freedom from pain and suffering, ecological impact of factory farming of animals, social impact of slaughterhouses, societal impact of allowing a class of “lesser” commodified sentient beings propping up and holding space for other axes of oppression, public health impact, and personal feelings of guilt at very least might be any amount greater than their value when made into a burger, or shoes, or glue. Everything you associate with vegans (diet) is a logical consequence thereof”

It doesn’t seem to help anyway because they still keep asking a bunch of seemingly obvious questions that verge on sealioning, but it at least seems to keep the conversation on track.