That is not correct. They believe animals have no soul because they want to eat the animals, but actually animals do have a soul. So, all these similarities are there. That is not logical. In logic there is something called analogy.
Analogy means drawing a conclusion by finding many points of similarity.
That is not logic. The Danger of Starvation In the Bhagavad-gita it is confirmed that one who takes foodstuff after a sacrifice eats real food for proper maintenance of the body and soul, but one who cooks for himself and does not perform any sacrifice eats only lumps of sin in the shape of foodstuff. Such sinful eating can never make one happy or free from scarcity. Famine is not due to an increase in population as less intelligent economists think. When human society is grateful to the Lord for all His gifts for the maintenance of the living entities, then there is certainly no scarcity or want in society.