Greetings and peace be with you Nur Student;
I am not sure how you can put an end to conflict with beliefs like these..
As for the Caliphate Shi‘a, they can claim no rights before the Sunnis other than shame.
O Sunnis, who are the people of truth,
Unity to fight against atheism might not be the greatest way to bring people together.
Quickly put an end to this meaningless, disloyal, unjust, and harmful dispute between you. Otherwise the atheistic current which is now so influential will make one of you a tool against the other, and use the one to crush the other. And after defeating the one it will destroy the tool.
Justice for all people would be the real cause that brings people together, a billion people live on less than a dollar a day, people of all religions and no religion. The eradication of poverty would be a just cause for unity.
In the spirit of praying for justice for all people
Eric