You better believe they would.
Here is a quote from the Nov 15, 1952 Watchtower
"Questions from Readers
In the case of where a father or mother or son or daughter is disfellowshiped, how should such person be treated by members of the family in their family relationship?-P. C., Ontario, Canada.
We are not living today among theocratic nations where such
members of our fleshly family relationship could be exterminated
for apostasy from God and his theocratic organization, as was possible and was ordered in the nation of Israel in the wilderness
of Sinai and in the land of Palestine. "Thou shalt surely kill him;
thy hand shall be first upon him to put him to death, and afterwards
the hand of all the people.
And thou shalt stone him to death with stones, because he hath sought
to draw thee away from Jehovah thy God, . . . And all Israel shall
hear, and fear, and shall do no more any such wickedness as this is
in the midst of thee."-Deut. 13:6-11, AS.
Being **** limited **** by the laws of the worldly nation in which we live and also by the laws of God through Jesus Christ, we can take action against apostates only to a certain extent, that is, consistent
with both sets of laws. The law of the land and God's law through
Christ forbid us to kill apostates, even though they be members of
our own flesh-and-blood family relationship."
I put the asterisks in to highlight the attitude.
Dave