The Bible says that God wants peace,as in all Churches.
The truth is we sometimes like to debate according to the flesh,and not the Spirit,so we will argue,and belittle,like the world argues,and belittles,over their beliefs,but there is no fighting in the Spirit.
There should be no name calling,or belittling,but we should point out scriptures,and let God deal with them.
Even when Judas betrayed Jesus,with a kiss,in the garden,so they would know who to take,Jesus called him friend.