I'm sorry but I'm going to have to disagree with u LivLuv. Universalism is SEPERATE from coexistence. Univerversalism believes that everyone should agree to the same notion and get along, living in peace. Coexistence is to live in peace with another or others despite differences, especially as a matter of policy. The author does agree to peace, but not what is brought about by universalism, but instead what is brought about by coexistence.
And universalism IS a religious term. It is ABOUT RELIGION. Sorry to go on but.....
Universalism is the teaching that all people will be saved. Some say that it is through the atonement of Jesus that all will ultimately be reconciled to God. Others just say that all will go to heaven sooner or later, whether or not they have trusted in or rejected Jesus as savior during their lifetime. This universal redemption will be realized in the future where God will bring all people to repentance. This repentance can happen while a person lives or after he has died and lived again in the millennium (as some "Christian universalists" claim) or some future state. Additionally, a few universalists even maintain that Satan and all demons will likewise be reconciled to God.
Nevertheless, both facets of universalistic belief are in serious error. People will suffer eternal damnation (Rev. 14:11) and the demonic forces have no redeemer.
It is a religious term because the Unitarian Universalist Association (UUA) is involved with the notions of Jesus, heaven, hell etc.
In conclusion, the author does agree to peace, universalism is involved with religion, and it is seperate from coexistence. Sorry if I have rustled a few feathers.