I have one thing to say.
God will have mercy on whom He will have mercy and there is nothing that you or me or anyone can do about it. His ways are not our ways and they are past finding out. If the clay can not say to the potter, make me this way and not that way, then the potter can decide what He wants to do with the clay. God is perfect in justice and if His justice includes mercy then that mercy was perfect justice.
God will have mercy on whom He will have mercy and there is nothing that you or me or anyone can do about it. His ways are not our ways and they are past finding out. If the clay can not say to the potter, make me this way and not that way, then the potter can decide what He wants to do with the clay. God is perfect in justice and if His justice includes mercy then that mercy was perfect justice.