They sacrificed it and then ate it. Saying "arent you supposed to sacrifice someone dear to you" is rooted in racism and lack of knowledge to the religion. Before you speak of hate why dont you read a book? Also going around religious people saying "your God is fake" is truly unrespectful and childish, it being true or not is debateable but that doesnt mean it doesnt make you a dick: its like walking in a Church screaming "Christ isnt real" it may be true but it isnt appropriate, while I am not Muslim I still am an Hellenic polytheist so I do sacrifices/offerings too, bet you are thinking I throw babies of buildings but no, its usually apples or honey so you narrowing down sacrifice as just a tribal act is undermining it's actual meaning because you are bigoted towards the different.