The nerve of this guy. You make that choice good for you but for you to push your views on your family and say shyt like don't eat animal products or animals around me then cry when they actually do it. That's textbook hypocrisy because both sides are attempting to push their views on each other and crying about it or acting a fool. He's not above it all he's right there in the thick of it.
No his family shouldn't temporarily adopt his ideology around him to appease him. He should make his choice and do him and let them make their choice and do them. If they come to his side of their own free will great but if they don't it is what it is.