...a hate so extreme that they would suggest killing people for what they believe.
I can't imagine where they got that idea.
Exodus 22:18 Thou shalt not suffer a witch to live.
Leviticus 24:16 And he that blasphemeth the name of the LORD, he shall surely be put to death, [and] all the congregation shall certainly stone him: as well the stranger, as he that is born in the land, when he blasphemeth the name [of the LORD], shall be put to death.
Leviticus 20:27 A man also or woman that hath a familiar spirit, or that is a wizard, shall surely be put to death: they shall stone them with stones: their blood [shall be] upon them.
Numbers 15:32 And while the children of Israel were in the wilderness, they found a man that gathered sticks upon the sabbath day.
15:35 And the LORD said unto Moses, The man shall be surely put to death: all the congregation shall stone him with stones without the camp.
Deuteronomy 13:6 If thy brother, the son of thy mother, or thy son, or thy daughter, or the wife of thy bosom, or thy friend, which [is] as thine own soul, entice thee secretly, saying, Let us go and serve other gods, which thou hast not known, thou, nor thy fathers;
13:8 Thou shalt not consent unto him, nor hearken unto him; neither shall thine eye pity him, neither shalt thou spare, neither shalt thou conceal him:
13:9 But thou shalt surely kill him; thine hand shall be first upon him to put him to death, and afterwards the hand of all the people.
Deuteronomy 13:13 [Certain] men, the children of Belial, are gone out from among you, and have withdrawn the inhabitants of their city, saying, Let us go and serve other gods, which ye have not known;
13:15 Thou shalt surely smite the inhabitants of that city with the edge of the sword, destroying it utterly, and all that [is] therein, and the cattle thereof, with the edge of the sword.
13:16 And thou shalt gather all the spoil of it into the midst of the street thereof, and shalt burn with fire the city, and all the spoil thereof every whit, for the LORD thy God: and it shall be an heap for ever; it shall not be built again.