Not just the decision of rejecting or not but eating or not?
I’ve recently thought it’s best to just take it especially if it’s not from someone close them I can regift it as I see fit. But if it’s edible and I have no one to give it to it’s much harder!
I’m lucky in that my culture doesn’t give non plant based gifts (except stuff with milk in it, but I’m vegetarian not vegan), especially without asking, so I have never faced this issue.