Yep, some we leave to their own devices.
And Jesus, after giving a sermon on Unconditional Election:If what we are discussing [Predestination] this morning makes you feel uncomfortable or even angry, then perhaps you should take a second look and ask yourself if you really are a Christian. Use that feeling as a warning that something might be wrong, much the same purpose that pain serves when it alerts us that something is wrong with our body, and needs attention. And the attention you should give is not to yourself and your feelings, but to the Lord Jesus Christ, seeking his face, seeking to know him and serve him. Your attitude should be: "even if I were to find out I was predestined to hell and judgment, still would I seek to love and serve my Lord and God Jesus Christ." Let me further suggest that if you have this attitude, it is almost incontrovertible evidence that you don't have to be worried about your own election. ~ Perspectives on Predestination by Barry Hofstetter
"But there are some of you that believe not." For Jesus knew from the beginning who they were that believed not, and who should betray him. And he said, "Therefore said I unto you, that no man can come unto me, except it were given unto him of my Father." From that [time] many of his disciples went back, and walked no more with him.
Seems like we should just continue to follow the example of the Lord and preach the gospel nicknamed "Calvinism" and the spiritual Tares will leave and find their own itching ears churches.