The term pseudoscience is one I don't like. It smacks of a clubhouse, with people who are in, and those who are out. This only breeds contempt for established science and learning.
If someone makes claims that appear to be completely unsupported and crazy, don't call it pseudo. Call it what it is: bad.
And don't just call it that, point out why it is wrong and why another interpretation is right.
Case in point: Colombian gold artifacts have for years been highlighted in books and tv programs claiming that the artifacts are representations of ancient jet planes. Anyone looking at them can see the resemblance, but of course this makes no sense.
Take a look at how Mori handled this, with an initially respectful tone that doesn't speak from authority, but with simple common sense.