We don't believe any of this is from bad genes. It is from successive generations of adults hardening the hearts of their children so that they do not feel empathy for animals. It starts with serving them the flesh and bodily secretions of animals and wearing their skins, and grows from there until they create a generation of sociopaths.
In spite of this, may you have a compassionate and blessed Christmas and New Year.
In the Love of the Lord,
Frank and Mary