Is it obligatory for a child to obey his parents in boycotting and showing enmity towards the killer's family due to their killing of the deceased's relatives?

Enmity and estrangement among Muslims are not permissible, and it is unlawful for a Muslim to abandon his brother for more than three nights, as mutual hatred among Muslims is a reason for being deprived of forgiveness. Obedience to parents is obligatory unless they command a sin, and interaction with them must be gentle and with kind words. There is no justification for enmity, insults, and violence between the families of the killer and the killed, because the families are not responsible for the sin of their relative, as Allah Almighty said: "And no bearer of burdens will bear the burden of another."