You get invited to dinner. No one says dinner will involve meat, only your personal bias tells you it should be meat. You find dinner that was prepared without the torture and murder of living beings. You are not only disappointed that such atrocities were not committed to feed you, you then complain to your very gracious hosts and leave, and somehow the hosts are supposed to be nice to you?
I'd have simply asked you to fuck off rather than bother to discuss your politics, but either way, go make your own food if you're that particular.
No, that's not all you wanted. You wanted everyone else to work to give you what you want, while not giving a damn what they want. If this is you, you suck, are a terrible guest, and good riddance.