Earlier quoted context omitted.
Are you equating eating eggs and animal fat with having sex with twelve year olds? Are you going to Godwin the conversation next?
So you do simply disagree with their moral values, rather than believing morals should be cast aside when people around you hold different ones. That is what I figured. But surely you can see why vegans, who do believe animals' rights are very important, would not see any more merit to your advice than you would to advice that encouraged you to abandon your deeply held values because they're inconvenient.
I think western wealthy vegans don't have particularly strong morals or ethical values and are vegan for other elitist and classist reasons. I think if they were exposed to the real world they would have a more practical (and Buddhist) outlook on diet.
I don't think they particularly care about animal rights either. You can have a moral and ethical existence and still eat eggs and animal fat.