The point of my first post was to say we don't have to assign any probabilities at the moment.

I'm just viewing it as compelling entertainment. Outside of this thread, I haven't mentioned it to anyone. It's probably premature to unwaveringly denounce or support it. When we have to actually act on it, or if it causes actual crime in the real world, that's when it helps if you take a stand.

If knowing for certain one way or the other would influence one’s choices, a truly rational agent (which humans only approximate) must always at least implicitly assign a probability.

Some people are appealing to people who believe it in their political campaigns. I think this is sufficient to make it relevant.