No more so than anecdotes of Ben Carson's typical Christian fundie bigotry and the rise of rightwing authoritarian politics in Europe turning up in a discussion of Dawkins being a problem for "atheism".
Depends on how you mean that; I am uncertain as to the specific context of the question, but neither have I yet pinned the context of any answer. I presume our neighbor knows his intersection, or not, according to his inclination in the moment. I've found it useful in another discussion↗, so, there's always that.
I would make two brief points, here: • If you say "minivan", and are corrected, "No, it is an automobile", you might notice the correction doesn't preclude what you said. • I wonder at your phrase of "out of nowhere", given the discourse preceding.