I'm sure there is, but i don't care. I have no problem with veganism. It's great for you and yours. Why would I ever give a stuff what another human eats, so long as it's not me?
We can't keep continuing to claim what a smart species we are if our practises change the planet to such a degree that it leaves our genetic lines (our offspring) with a much more uncertain or even bleak future.
Anyone can say, ahh **** it, i'll be dead so who cares? That kind of thinking will put the longevity of the species well behind basic creatures like ants, cockroaches and rodents.