I would really not be so in your face to feed raw in your home if everyone is a Vegan. How about a quality kibble? There are plenty out there.
I agree re kibble! I would go a step further and recommend that you use a fish-based kibble -- many vegan cat-owners I know have gone this route. They tell me that they find fish is the "least objectionable" option, and this choice respects the cat's essential dietary needs. They wish it weren't necessary, but since it is, they make the choice they find easiest to live with.
You can find some really outstanding fish-based kibbles (Fromm and Taste of the Wild are good exampels). Fish-based kibble has been the kibble of choice for many GSDs I've known--they tend to do very
well on it (better than on chicken or lamb kibble).
Fish is lower on the food chain than beef or pork, and in some ways better for the environment than factory-farmed chicken. Whitefish, for example, tends to be a very common, inexpensive ocean fish--not farmed like salmon. While it won't eliminate the vegan concern, it's a fair compromise that respects concerns regarding poor treatment of cows, pigs, and chickens in factory farms.
Take a look at Fromm's Whitefish & Potato kibble. Or at a lower price point, Diamond Naturals Whitefish & Sweet Potato. Costco also sells a grainfree housebrand called Nature's Domain that's a fish-and-sweet-potato product made by Diamond (with ingredients similar to Diamond Naturals).
A decent fish-based kibble will be WAY better for the dogs than vegan food. Perhaps this route may be a respectful compromise allowing you to avoid some drama.