This lady's response is exactly why so much of Christianity in America is, well, sad. So many American "Christians" are spiritually naive, theologically starved and unable to form biblical lines of reasoning. We haven't taught them the Bible: the unvarnished and unadulterated Bible. I suppose if you showed her where those "hard" Scriptures were in her Bible she would be surprised.
This is one reason I am preaching straight through the Gospel According to St. Matthew. I want people to accept or reject King Jesus based on his own words and actions and not based on some caricature of what people want him to be or believe he is.
Will no-holds-barred preaching win everyone? No. As Paul said,
"What then? Israel failed to obtain what it was seeking. The elect obtained it, but the rest were hardened," (Romans 11:7 ESV).
I am preaching for the sake of the elect/chosen, the ones who will believe.
Therefore I endure everything for the sake of the elect, that they also may obtain the salvation that is in Christ Jesus with eternal glory. (2 Timothy 2:10 ESV)