@danirabbit
Neither are eggs and milk.
Of course, you could stick to strict definitions of vegetarianism or plant-based diets, I don't really see the imperative.
I get this is a strange take, but from my perspective vegetarianism isn't so different from 'flexitarianism', in that they both lean on plants heavily but arbitraily include some animal products according to personal preference.
But all that aside, veganism isn't (just) a diet and there's no half-measures, you either do it or you don't.