hi hint
That is simply not true, we think we are doing a life-saving work according to the bible which is the one giving humankind the ultimatum not us.
Acts 11:14
He will bring you a message through which you and all your household will be saved.'
Did the Christians think the message they gave saved lifes? yes and if people rejected the message?
Romans 2:8
But for those who are self-seeking and who reject the truth and follow evil, there will be wrath and anger.
1 Thessalonians 4:8
Therefore, he who rejects this instruction does not reject man but God, who gives you his Holy Spirit.
If you have a problem of recognising that Jehovah has laid a choice before all mankind as to whether the reject or accept him and we are responsibile for getting his life-saving message out then your complaint is with the Bible not us.