And I just posted this in response:
Beginning with Constantine the Church was no longer an outlaw organization and being a member was no longer punishable by death. Changes like that tend to change public behaviors.
I never cease to be depressed when those who claim to be Christian see their fellow Christians as the source of all evil and a more worthy target for their hatred and vitriol than radical Islam, atheistic secularism, humanism, modernism, and Satanism. I pray that those who do and see differences in doctrine as somehow demonic and intentionally sinful as opposed to simple error. Those who hold those thoughts are demonstrably not Christians.
Jesus' repeated command to us is to love one another and the definition of love is the desire for good for the other simply for the sake of the other. If we only love those who love us or are like us it is not love but a form of egotism.
As St. Thomas Aquinas taught, the greatest love is found in the shared love a transcendental third thing. For example, we may both like each other based upon nothing more than a shared like of the same baseball or football team. The greater the love for that transcendental third, the greater the bond between us. Christian marriage needs to be based upon a greater love for the bond of marriage and the "us" formed than for the love of our spouse or self. If we both express the ultimate love for God, we should therefore have a love between us that transcends the differences of definition, doctrine and the punctuation in Koine Greek idioms that too many choose to divide us.
"This is My commandment, that you love one another, just as I have loved you." - John 15:12
Love them enough to tell them the TRUTH.
GOD'S WORD ALONE REIGNS, JESUS IS THE WORD.
WHO would REJECT that love?