I think there's an inherent disagreement between aspects of overzealous veganism and the publishing standards on this site, and for that, there's nothing to do.
To suggest that veganism is the pinnacle of morality suggests that any who disagree are, in some way, flawed. We at permies are all too polite to trumpet the perceived failings of our compatriots here, and we know that in large part, right or wrong (barring actual ecological wrong done to the soil, say) is largely a matter of perspective, goals, and ideology.
I don't think that the type of vegan conversation you're looking for will go over well here on permies. I think that there are a lot of vegans doing good
permaculture, and documenting it. I think looking at what they are doing in community might be a good start.
I think that changing the conversation to be more inclusive in nature would improve its tone, and receptivity. But I think even most vegans on this site are more pragmatic than to think that it's a good idea to shun those who disagree with them.
-CK
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein