If a person kills someone just out of blue or for fun, money, sex etc that could be sick but if parents killing kids they gav birth n raised with all love then there's extreme measure issues involved. they cannot be just labelled as sick or abnormal. they r helpless families that need serious help. Islamic organizations who collect zakat and donations whole time should come forward and do something abt this. i don't fall for the trap of just blaming one party and sympathizing with other.i try to see whole picture. sometimes yes it could one party that is totally wrong or too extreme and conservative.
Islamically u r not allowed to kill any one not even ur unborn, undeveloped child. but then u r not allowed to disobey ur parents and go against their wishes. Kids can do watever they want, marry whoever they want is just westernized version of islam. they r not. Islamically If ur dad n mom r not happy with u Allah is simply not happy with u. for me this is enough reason for both parties to be wrong.
Again, you keep saying you can see the whole picture. It doesn t MATTER what the kids did, even if they had 10 differnt sexual partners! you cannot killl someone because of that. You are sympathising with these murderers and saying they need help. They need to be locked up in jail for life for MURDER.
Islamically, you cannot kill your kids.
Kids will do whatever they want, no matter where they are. Not just in the "west" but also in eastern countries. So many times parents can also be unreasonable and totally wrong. Does that mean children should kill them?