I would have invited him in, given him coffee, and sit down and ask him to tell you why he's doing what he's doing. Then I would have taken virtually every argument he would have given me and politely steered him toward the truth. No acrimony, no bashing, just simple logic, one in which a teacher would patiently let a student come about his own answer through figuring out the logic.
If he was as nice or as amiable as you portray, then he certainly would understand the direction we are coming from. Now, as more Libertarian than conservative, I may have more points of view that may be in line with his from a constitutional standpoint (that a conservative), but the overwhelming Democratic agenda is still light years different. The point is that you would have done two things:
1. You would have given him some real non-propaganda talking points to mull over, and...
2. You would have taken him off his route to keep other people from being taken in by a false message.
Now, if the guy were a TYPICAL modern democrat, he wouldn't have been "polite," but being elderly and black (and liberal), I would assume he spent some of his early adulthood during the transformation of civil rights. This is one area in which the republicans have, in the past, been WOEFULLY inept at properly asserting our position in the entire issue.
