What I did not mention there was that this was on a second or third date with a promising-seeming woman my age and general SES.
We did promptly drop all mention of politics. At my insistence. And so far that hasn’t resurfaced, but it definitely altered my perception of the range of possible end-states of our budding relationship.
So call it a soft cut-off in that certain futures are almost certainly foreclosed, baring a miracle.