I enjoy talking to them when they come to our door. My wife and I love to engage them. We wear them out with our bibles. Love to point out passages of scripture that they have no answer for. Often, they leave but send their more experienced elders to work on us.
No, they’re not Christians.
I try to assume the best about people unless they prove otherwise. I answer the door, politely thank them for their interest, state my belief in Jesus Christ and close the door. I wonder what would happen if devout Christians of every denomination spent as much time knocking on doors and proclaiming their faith.