If a not muslim ask about halal meat definition what should i say?!

i meet one guy and ask me if some give u somthing happily what will u say
i said gift good thing and if take somthing without asking by force which he does not want to give u then what will u say i said that`s wrong robery or what else then he goes u all muslim why kill animals they living healthy and happily on the earth like all others!. why we kill them without asking them!.!.Www@FoodAQ@Com

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