There are two ditches; one is PC the other is incendiary language. Speaking the truth in love is the path that avoids both ditches. Love does not mean provoking warm feelings, but concern for the well being of others. For instance, saying to a young feminist that killing babies is murder one is speaking the truth while exhorting the would-be murderer to avoid committing a crime against her child and God, and hoping to preserve the life of the child. The words are strong and unyielding, they are not PC but they are not needlessly incendiary. Needlessly incendiary might be more like telling that feminist that "bitches who have had abortions should all be lined up and have their brains sucked out, just like they did to their baby." There is no love in such a statement, although more than a fair amount of truth. But even that statement can be balanced with something like "...that is justice for what these women did, but Christ came to earth that even sinners as evil as those who murdered their own child might have hope and forgiveness before God." Now the truth is spoken with love. Words matter and the tone and motivation behind them. Truth is not a weapon to hurt others, rather weapons are used to defend the truth.
I'll take No. 2 for $1,000 Alex. Many of us have had enough of this mamby-pamby approach you suggest. It gets no coverage or changes anyone's opinion. Incendiary language on the other hand, gives the opposition an "Oh Crap, they've wised up" moment.