Agreed. As a Calvinist I would disagree with any of my fellow Calvinists who would claim anything other than that the Gospel be withheld from no man. It is not for us to say or decide who is saved and who is not.
The main point I was attempting to make (admittedly poorly) is that Christ knew who the “vulgar unelected” were and yet he taught the Truth. The Calvinist, having not the vision of Jesus, is encouraged to preach to all (even the “vulgar unelected”) with equal fervor.
I think the original poster missed the understanding that our limited vision cannot even discern the “vulgar unelected” and hence cannot adopt this attitude. And secondarily they missed that many who put on the cloak of “believism” simply cast it aside when the storms subside (the fruitless seed).