Quit calling seemingly every belief which you do not share a "heresy." The term - like the term "liar" - incites flame wars and discourages others from posting at all.
This very thread is flamebait.
One of my very best friends (a Ukrainian Orthodox Christian) calls me a Heretic to my face.
And he's not joking. He means it; he's quite serious.
Respectfully, mind you. Kindly. Lovingly. One concerned Amateur Theologian to another. Truly believes that I am a Heretic, and is concerned enough for my spiritual well-being to say so. I respect him for that; and in turn, as a good Orthodox Christian, he doesn't mind sharing the Antidoron even with a cantankerous Calvinist whom he does consider to be a Heretic (at least as compared to the "One True Faith", i.e., Orthodoxy).
I don't mind. Sticks and Stones... but words will never hurt me, right?
As a convinced Calvinist, I may disagree with his belief that I should join the Eastern Orthodox Church -- but at least I know he loves me enough to care.
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You're the Boss. You can declare "Heretic" an "off-limits word" if you want to. I'll try to respect that.
But some folks need to get tougher skins on their inner emotional child, if one is to discuss "True or False, Black or White" about anything.