(1) Those like the man who erected this sign, which is highly visible from I-65, a highway I travel often.
(2) Those who see the sign and are indignant and say "That's so stupid. Can you believe there are such idiots in the world? I'm embarrassed that I live in this state."
(3) Those who see it and laugh but say "Well, actually he has a point."
Here, by the way, is some information on the man responsible for the sign.
I recall seeing it as long ago as the 1980s. A few years ago it disappeared and I was afraid that the forces of Godlessness had finally prevailed: someone had decided it was too divisive or something. But it had been blown down by a storm, and was eventually put back.
Now that I think about it some more, though, and having read the second piece linked above, I see there are actually four types of people.
(4) Those who think it's crazy but like the fact that there is still some untamed eccentricity around.